A few of us are building some racing Commodores. Anything in the C64 and C128 families qualifies. I just won 3 C64Cs on eBay, with a couple more being bid upon.

Cornering the market, as one may dare to call it. Seth and I each bought flash card interfaces for them. (You can use MMC or SD cards (up to 4GB) as HDDs for the C64!!) Seth has a Roland stero chorus pedal built into his to get pseudo stereo from the C64's mono ouput. (I'm going to do the same.) We're also going to buy some PAL crystals, to put in a switch to change between PAL and NTSC modes. I'm replacing the C64-style AV ouput over to S-Video, and either stereo RCA, or quarter inch connectors. (RCA would be standard for TV use, but 1/4" looks cooler and can be adapted.) Have a couple other little tricks planned as well. I've got two Sega Genesis pads that will work nicely for game input. Of course the power LED will be replaced by color cycling RGB LED, that cycles to the set speed of the stereo chorus box.
The coolest thing about the flash interface is that you no longer need a big floppy drive plugged in, and not extra cables. So the full size of everything is the size of the C64 itself.
If anyone is interested in building a racing Commodore, let me know, and I'll point you in the right direction for the bits and pieces to get.
Go! Go! Racing Commodore 64!!
McNevin, will you be joining us? I'll supply you with a baseline C64C if you buy the flash drive.
http://www.jschoenfeld.com/indexe.htm It's called the MMC64. $60ish... I should have mine all assembled by next week.
This just in: (on the phone with Seth) We're going to add a socket to put in an extra SID chip, so you can switch between 6581 and 8580!! Weeeeeee!!!!