Something like this would get you started..
..For a commercial....D-tek Fuzion V2
I'd use a back plate with either one, it might help you get better block mounts...Dtek FuZion Intel 775 Pro-Mount set
Rad...A 240 would be fine on a CPU only loop, but if you have the room I would go with a 360 if you have the room, a little bit of over rad is always a good thing...They really don't cost much more then a 240 either, if you do decide to do a GPU later on you will have enough rad for it... GTX360
I'd use fans at least this size on any rad..86cfm Pana
.These are what I use....115cfm Panaflo-SVC
A shroud will help to...
...How To: Make any Sized shroud in 2 minutes
...How To: Build A Performance Shroud
...Poll: Push or pull configuration for Radiators
...Part 1- Temp's with and with-out shrouds
Res..DD 5 1/4" Bay Reservoir
.Or just use a t-line...
Tubing..I like this..7/16x5/8"
.You use it on 1.2" barbs, it will still flow about as well as the full 1/2" and will fit your barbs tighter and is a little more compact...
This if you want full size...1/2x3/4"
..I'll leave you my cleaning and set up PDF, it has all of my coolant recipe in it...
Automotive worm drive clamps clamps or zip-ties for the barbs...
I'll leave you some stuff to read, be sure to read all the stickies here also, there is a lot of good info in them, don't cheat yourself by not reading them...
Take your time buying parts, do some research, look over all your options and you will be able to tailor it to your needs...
..Water Cooling - In English
..Assembling your Custom Watercooling Setup
..Bleeding my WC setup..
..PC Water Coolant Chemistry - Part I
..Cooling - An In-Depth Look