That depends on your definition of "make".

Fuck a horse, apparently.

The software on that Jensen unit is not the greatest and kind of clunky. 

If you can find a Garmin Nuvi unit for a price you're willing to pay even the most basic ones are going to be a better option.

I'm interested in the mounting capabilities for one of these things. Can you some how attach it behind the steering wheel, where the original speedometer would be? I'm very much considering buying an insanely cheap car that was recently used in some movie and had it's entire front console taken out. Not needing to sack out all kinds of money to replace it would be pretty awesome.

They're really not designed to mount like that. I just bought a 265w, because I'm sick of getting lost, and it was worth every penny. Unfortunately, it's a lot more than you want to spend. I don't think I would recommend buying a cheap gps setup, either, but whatever floats your boat. If you're just using it for speed calculation, it might not be too bad. If you plan on actually figuring out where you're going, I'd suggest you spend the extra cash on a Garmin.

Knowing your position now and a few seconds ago gives you the information you need to calculate speed and direction too.  I've never used a hardware GPS but the DeLorme GPS software does that, just not as a giant number so you can use it as a speedo replacement.

I think I can live with the two different screens. I have cruise control, so once I know my speed I can set the cruise and start looking at the map again.  I'm also glad it has a tripometer, since it's become apparent to me that the warning light on my gasometer is now dead too.

I'm probably going to buy this if no one has any objections. I'm trying to find it on Ebay, but that's probably more trust than I can put into a seller.

As for as keeping wires out of the way, its usually pretty simple in most cars. The dash's in most vehicles (at least from my experience) are just pop in. So you should be able to just kind of tug at the corners of the dash cover and pull the whole thing off. Done it a couple times with my sirius radio and a few times when I had a lowrance handheld mounted up front in my truck for offroad kinds of things. You can usually run it right behind the instrument panel behind the radio and down out the bottom of the dash and the wires are for the most part hidden. So if your worried about exposed wires thats usually the way to go, thats just my two cents at least.

Have you tried checking a salvage yard for a new (to you) instrument panel?  Did the service shop tell you specifically what's wrong with it?  I had an '85 t-bird that had an all digital dash that went out on me.  I picked up a new (to me) one at a salvage yard from an '84 t-bird for $80.  Installed and it worked fine, although the speedometer was a little off, I'd calculate my speed on on the interstate by timing the distance between mile markers and the speedo would say I was traveling about 3mph faster than I actually was, so there was a bit of a trade-off there.  Still better than not knowing at all.

 
 It's called a rollover loan. They take the remaining balance of what is owed on the old car and roll it over on to the balance of the new loan. For example: You own a 2002 POS that has a remaining balance of $5000 and you want to buy a new 2009 POS for $10000. The old balance of $5000 will be rolled on top of the $10000 for a  total balance of $15000 for your new car loan. The end result of this type of loan is you get to pay extra interest for the new car and you get to pay twice for the old car that you no longer own.  My advice to you is DON'T DO IT!!!!!!!!!    

  Really, don't do it unless you have no other choice.  Go find a better auto-tech and get that oil leak fixed. Can't afford dealer rates than ask around or go on Craigslist and find your self a tech that does side work. Get some friends and a manual and fix the car your self. Go practice on the old car first, if you still have it, and  build up your confidence. Hell, if you get the old car fixed and running then you can go sell it and use the money to fix the newer car. Next time your at the shop to get the same oil leak fixed play the shame game with the shop manger or better yet the shop owner or general manager. Remember the squeaky wheel gets the grease.  Just avoid that rollover loan until you have exhausted all other choices.

Also, if this is a car was bought in the USA, all 50 states have some kind of lemon laws for both new and used cars. Different states have different rules so check with your local consumer protection office if you have one.  Good luck , Red Robin1