Case Modding Links:
The Below links are of sites that I visit on a regular basis for case modding information and parts. I hope that you find them as helpful as I do.

Case Modding Information
2cooltek This site has good how-to's and a good store. One of my favorite cooling sites.
[H}ARD OCP This Site has tons of how-to's and pictures to get ideas from. Very Good site.
Fast-Mhz! This site is mainly composed of pictures and specs, but I feel that it is ideal for those just starting out in case modding as it gives them many cases and layouts to choose from in designing their first computer case mod.
Overclockers.com Though I do not agree with overclocking, I have found that overclockers.com has good idea for cae modding in the way for cooling. I prefer to keep my computer as cool as possible.

Parts Sites
2cooltek.com Great Fan Selection, very helpful via email. Prompy shipping. What more could one ask for.
NexFan Another good site for parts, and information.
Pricewatch.com Goodsite to find prices on almost all computer parts that anyone could ever need. Even older parts that are hard to find.
KD Computers This site sells all kinds of computer parts. But their selection in cooling parts is very good in comparison to other parts sites.
The Overclocker's Cafe' This site really does not sell much, but they do have good information and is very well laid out.
TweakTown Another Site that does not really sell anything, but has good information about cooling.
Club OverClocker This site is just for hardware reviews, but if you plan to plunk down your cold hard money; you best know what you are a getting.
Pro-Cooling This site is dedicated to hardware reviews of parts that are specifically for cooling computers. The cooler the computer is, the better it will run. ---- to a point lol.
CaseETC. This site sells both computer cooling parts, and gives reviews about parts. They even custom parts that no other site sells.