Extra/ongoing expense for Xbox 360 would be:

- Xbox Live subscription ~£35/year - £25 if you shop around.
- Play and Charge kit for wireless pad (you can just use the included USB cable for the PS3 pads)
- HD-DVD drive or standalone Blu-ray player if you wanna go HD in the future - HD-DVD is no longer a common format, it is not used any more.
- Proprietary hard drive if you want to upgrade, which are horribly overpriced (any 2.5" HDD will do for PS3) - I think about £60 for 120GB (not great I know)
- Wireless headset (there is an official PS3 one, but most generic bluetooth ones will work fine)
- TOSLINK adapter if you want to use optical out (PS3 has a native output)
- Memory cards (you can use any generic USB drive on PS3)
- Wireless adapter - but you've already ruled this out.
