I bought a JVC HDR50 from Crutchfield
http://www.crutchfield.com/S-frxcds86Mlj/p_105KDHDR50/JVC-KD-HDR50.html
Cons:
Awkward little button for next/prev channel/song.
Remote Control only seems to work if you point it directly at the radio face.
Had to buy extra jack splitters from radio shack to wire up dash speakers. I don't have door speakers and not sure how those would wire up.
For 2001 boxster, the provided harness had the switched and unswitched wires swapped. After I installed and discovered, I had to pull it back out and cut wires.
Pros:
Excellent sound, makes the oem dash speakers sound very full.
Pretty nice fit, not a hard diy install.
USB plug lets you plays MP3s from a thumbdrive or iPod.
29 color illumination.
When I had problems with speaker wiring, the crutchfield phone support was *excellent*, perhaps the best tech support I've had in years. The guy had my wiring diagram in front of him and understood my "it's the black dbl decker looking thing" comments. Very good.
For $159 w/ free shipping and installation kit, it was a good deal. I'd buy it again.