Pink Floyd FAQ.
http://www.allfloyd.com/echoes/index.html

My current cd collection (and cd database thingy)..
http://www.redbrick.dcu.ie/~kane/cd/viewcds.php?viewuser=kali

Headphone Links:

Head-Fi (Headphone bulletin board)
http://www.head-fi.org

Headroom (Headphone information.. US company)
http://www.headphone.com

Cheapest Sennheisers I've found are at
Askdirect.co.uk

Cheap Beyerdynamic I've found are at
Veronica.co.uk

Other sites for purchasing cans
Richer Sounds - Jigsaw24