New build case and cooling

[HaloAddict19]

I am looking at building a new computer this winter or spring. Looking at getting aus a8n-sli, evga 7800gt (one for now), amd 3700+ 2gig ocz pc3200 2-3-2-5. Was looking at getting an acrylic case, because I think they look awesome, and my friends will drool over it. Looking that this sunbeam acrylic case kit, but was worried about it scratching, since I go to LANs kinda often. Is there anything such as plactic adhesed sheets or sprays or something to protect the acrylic from scratching? Other question: How do these parts look for a water cooling system? (was originally looking at thermaltake BigWater, but advised to get certain other manufacturers' parts)

Danger Den DD12V-D5 Pump
Danger Den Black Ice Pro II Radiator
Swiftech APOGEE Extreme Performance Universal CPU Waterblock
The Danger Den Acetal MAZE4 GPU
PrimoChill ICE Non-Conductive Liquid Cooling Fluid (32 oz.) - UV Red Price
all 1/2" tubing, gonna get 2x120mm quiet 4 LED fans, 78cfm, 35dba

My friend said to get the pro radiator, instead of the extreme, since it is thinner, and requires less loud fans, and still supplies lots of cooling. He also suggested Danger Den, and told me to get the Swiftech cpu block instead of a danger den. Lemme know what you think, improvements I could make etc.