Listmania!
Stuff that makes your computer brill
Creative Sound Blaster Live! 24-bit ExternalCreative Sound Blaster Live! 24-bit External
Better than onboard sound! Makes music and DVDs sound loads better, and comes with a great remote control that can control your PC too.
Sony MDR-XD200 Stereo Headphones - SilverSony MDR-XD200 Stereo Headphones - Silver
Buy new: £19.99 / Used from: £11.79
These sound great with that Creative soundcard up there - they have a great tangle-free cord, lots of bass, clear sound, and are really light and comfortable. Just don't expect to look OK in public!
Belkin  Bluetooth USB Adapter - Class 2; v1.2 10mBelkin Bluetooth USB Adapter - Class 2; v1.2 10m
Buy new: £15.00 / Used from: £14.00
Cheap way to get things onto your phone/PDA/etc. without cables. File transfer is quick, and it's as simple as drag and drop. Only thing is, the light on the dongle is too bright...ouch!
Kensington Comfort Gel Mouse Wrist Rest - BlackKensington Comfort Gel Mouse Wrist Rest - Black
Buy new: £8.48
This is really comfortable and squishy - it will stop your wrists from pressing on the hard desk.
BenQ CDR-80 (52x) 100pk Designer BoxedBenQ CDR-80 (52x) 100pk Designer Boxed
Only nine quid for 100 is great, and these are plain and simple recordable CDs - they do smell a bit like sweets though.
Samsung-1610-Mono Laser PrinterSamsung-1610-Mono Laser Printer
Buy used from: £38.99
Actually works, unlike an inkjet printer, and works very well. Even supports Linux, which is one of the main reasons I bought it. Get one in!
ByteStor 17 in 1 usb2.0 ReaderByteStor 17 in 1 usb2.0 Reader
Buy new: £5.99
A card reader, no more, no less. So long as it's unplugged when I start up my computer (I only plug it in when I need to), it works flawlessly, and lets me use the memory cards for my phone. Cheap!