Right, well I found a DIY canister walkthrough here:
I think I'm also going to go with one of these for lighting...It's an overhanging double T5 for £30 (plus postage).
The same company that's selling the T5s also sells the pump I'm after for £8 posted.
Cainm13, do you have a picture of your tank at all?
Gonna start building my filter today me thinks.