Mains cable?
What is he into? What about a couple of games for the consoles?
Blu-ray player? I know it's busting your budget slightly but you can get the Sony BDP-S360 for around £130 or so now.
A/V: Sony KDL-V40A12U & BDP-S350, BT Vision, Onkyo 875, B&W MT-30 7.1, QED A/V cables, R.A power cables
Hi-Fi: Arcam A85 & CD192, B&W 602S3 (& the PV1), Partington stands, Grado SR125, Kimber I/Cs, Rothwells, QED speaker cables, R.A power cables.