Haha I remember the original one, I ended up fitting an afterburner light to mine which illuminated the screen from the top just behind the LCD IIRC. Of course just after I'd spent all that money and time the SP was announced...
For me the SP is the best handheld ever made, the best combination of design, portability and quality of games (obv including GB/GBC). In fact I like it so much I replaced all the casing on mine when it got battered through overuse! If mine broke I'd replace it straight away.
Not a bad Master System emulator either, surprisingly Castlevania 4 works under the Snes emulator too along with about 3 other games!