There are lots of watercooling solutions out there. Since you probably are a beginner, I would recommend you buying a watercooling kit with everything you need (radiator, pump, waterblock, resevoir, whatever). About the quietness of it, depends on how quiet you want it. There are quiet watercooling, and even quieter. I know Thermaltake makes some passiver watercooling designed for HTPC's which are supposedly very very quiet, you would have a very hard time hearing them over your case fans. But you do pay a premium for the quieter watercooling solutions, and they usually don't work as well as active cooling.
Compatability wise, most watercooling kits come with brackets for all the major cpu's out there, so thats not going to be a problem. However, I would re-think getting a watercooled solution for your graphics card. Most GPU waterblocks only cool the chip itself, whereas most of the gpu fan coolers these days cool chip and memory. So if you do decide to get watercooling for your GPU, you should still have proper air flow for your graphics memory.
Other than that, I know the Thermaltake Bigwater 745 is a decent priced decent performing watercooling kit, but requires more work than a complete external solution.
http://www.newegg.com/Product/Product.asp?Item=N82E16835106074
The best external watercooling kit is probably your KOOLANCE EXOS, quite expensive, but the best there is.
http://www.newegg.com/Product/Product.asp?Item=N82E16835127006
Also, the Corsair Nautilius 500 got some decent reviews. Its not too big on cooling as watercooling goes, but it has a good price and is very easy to set up.
http://www.newegg.com/Product/Product.asp?Item=N82E16835181004
Lastly, for the quiet watercooling solutions, this Thermaltake cooler is quiet and stylish, and performs quite well.
http://www.newegg.com/Product/Product.asp?Item=N82E16835106071
There are many other watercooling kits out there, so always keep an open mind and get as many opinions as possible.