Right, after some extensive research and taking this sucker apart I have found the following hardware inside:
Media Processing Unit: Sigma Designs RealMAGIC 8M8511S
Memory: 2x Winbond W9812G2GH-6 SDRAM chips
USB Controller: ALI M5637
LCD Controller Chip: SST 39VF010-70-4C-B3K *I think*
EEPROM: Winbond w19b320 *I think*
Storage: Hitatchi 120Gb laptop sized HDD
Audio Codec?: Wolfson WM8750S
That was a tough job, but I guess it's a huge step towards getting a decent firmware on this baby.
There were smaller chips on the mainboard too, but I didn't think they were that important as yet.