okay.
There is no dual nub tut yet on acidmods, but PSP-Gen has one in french, but you could translate it into english.
Case can be bought from
dealextreme.com,
coolmods.co.uk,
ebay.com, all have them.
0603 leds are good and it barely affects battery life. Power button rewire mod can be found in tut section.
Daxters should be hackable.
You could get a soldering iron 15w off radioshack for like 10 bucks, same with solder and flux
A clear case from dealextreme would cost 20 bucks, and one from coolmods would cost 40 or so. 100 leds would cost about 30 bucks, and some wire, soldering iron, flux, and solder would cost like 35 bucks, maybe. So total to do all this, would be about 85-105.
Edit: Frosty moved it to PSP 1000 and then Noah moved it to tutorials lol :P