$3,099.00 seems like an awful lot of money for the system. You could probably purchase the components and assemble your own pc for a lot less money. It would also give you the freedom of choice to select different components if you want to.
Air cooling has improved quite a bit over the years. Depending on the configuration and components air cooling can be just as good as liquid cooling. The Coolermaster HAF 932 case used in the iBUYPOWER system has excellent ventilation, airflow, and cooling capacity. Technical reviews have been very favorable.
+1 for building it. Ibuypower has a pretty bad reputation among the PC builders.
ASUS P6T (any version ie WS, SE,etc)
6*2GB DDR3 1600 (12GB Total)
Core Contact Freezer (esp. if OCing)
Antec 900 or HAF 932
2*640GB WDs in RAID 10 for DATA
Intel X25-M G2 (160GB) or Velociraptor 300GB for OS/Programs Note: I do not recommend having the 80GB Intel SSD as it is too small with updates,etc. Many of the 3D programs (ie MAYA,etc) can easily eat up 10GB or so. Also note that I recommended the 2nd gen Intel SSD. http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=360...