Well, you want to jump in.
I've found
Petra's shoppe has good kits for n00bs, that aren't so weak.
DIY will show you how to do it, Kits will help you get there but kinda package it all in one. Kits would be awesome if they were priced the same as the hardware. I'm sure if you could put together your own kit with all the W/C parts out there, just for the price they cost (yea, right) then kits would be more popular.
DIY is learning, and lots of prep and thought go into it more than clicking Buy. Its fun and in the end you read more about W/C parts than you used too.
First mapp out a size of tubing, 3/8 is a great inbetween, and as long as your pump gives nice head, you can use 8mm(1/4).
Radiators, firgure a size you can have (case size, holes you don't mind cutting, and noise factor) the bigger they are the quieter they'll run.
With a nice pump, tubing and radiator, look at some blocks. Technically this is all you need to put together a loop (besides the fans). Swiftech and DangerDen make nice 3/8 - 1/2 blocks. If you looking at 8mm(1/4) go with koolance or alphacool. Not that these are the only block aker to buy from, they just are some of the best.
Fluid, its last on my lists, cause i can make my own if need be. GK did a review on a bunch of them, and cost vs non-conductivveness is the scale, the more you pay the better the stuff. The less you pay (ex make your own) the more conductive.
Blocks for
GPU's are nice, My suggestion there would be to go with EK or DD, they have the best all in one blocks, that cool the GRAM and the
GPU, but if you want to save a few bucks, either not w/c the GFX card is one option or going with sinks of the GRAM and W/C the
GPU only. Whichever you pick, the double heat in the loop (two sources) will always yeild lower results (besides parralell loops with one res).
Otherwise good luck, and when you get the parts, then start looking at W/C gear.