I'm gonna start building a PSU when I get funds together for some decent, isolated transformers. Also found some great schematics for a tubescreamer clone and an orange squeeze compressor somewhere. Lots of fun to be had! On the distant horizon, I'm hoping to build a tube preamp pedal, too. Get some nice growl! Those kits seem like an ace starting point. It's fairly important to have a half decent soldering iron though, especially if you're a noob at it. Cheaping out on it means it'll be unreliable (too hot one minute, too cool the next) and it'll all be much harder than it needs to be. That said, you definitely don't need to spend £150 on a weller job either. The one I have only set me back about £20 quid off eBay. xx EDIT: Some cracking info here: http://basschat.co.uk/topic/78585-diy-effects/