Fixed ideas

If you want the challenge of building your own fixed gear then do not buy a complete bike. Buy a frame and forks and then set about handpicking the components you want. I've just finished building my first fix and although frustrating at times (it's a Peugeot which are a pain in the ass to convert) it's mostly good fun and ultimately rewarding.

Use http://www.sheldonbrown.com/ as a technical reference and this might be a good quick read to get your knowledge up: http://everything2.com/index.pl?node_id=1741294

There may be some trial and error, but just flog any bits and pieces on here if you decide against using them. Search the forum for discussions on particular components so you don't end up with poor quality stuff and get yourself a set of tools like this: http://www.wiggle.co.uk/ProductDetail.aspx?Cat=cycle&ProdID=5360031531&N=LifeLine%20Workshop%20Tool%20Kit

Use Wiggle, Chain Reaction to purchase stuff on the net and you'll generally get a good deal and you'll end up with something that cost you the same as off the peg, but completely unique to you. If you ever have a question and can't find answers, post it on the forum and someone will point you in the right direction.

Hope this helps

Aaand, we're off!

Dunbar22, you've almost hit the nail on it's noggin.
Thanks, the link to the Pista was a very general starting point. As you say, almost standard. I buy quite a lot on Wiggle so trust them to deliver. I wondered how long Sheldon Brown would take to be mentioned. I'm glad the site was kept running. I did have a short look at the site but will take time to read them.

Fred, I was thinking of option 1 1/2. choose the frame/fork and work it out from there. I'll start with some background knowledge from the king (Sheldon).