I have had my 9CJS for about six weeks and love it. I am not an expert on overclocking but had no trouble getting my 2.6C P-4 up to 3.3Ghz. I got a little nervous about stressing components and backed off to 3.26 ( I wanted bragging rights for the 1,000Mhz+ fsb ). Temps never go above 42 centigrade. This is with air cooling (Vantec AeroFlow) and Corsair PC3200 RAM (I would use PC3500 or faster memory if I could go back and do it again).
I am not real big into games but the CBox3 is great and so is the Handigator remote if you like DVDs, music, digital photography/video, multimedia, etc. The board uses the Envy 24 sound chip set so music and DVDs are the best, better than Audigy 2 I have on my other PC or ?????. I understand it loses a little to the Audigy 2 in EAX but I really don't care. Hooked up to a GOOD set of speakers (I have Klipsch 5.1s) you would have to look REAL hard to find better quality sound from a PC.
It comes with so many extras that it is well worth the price if you need or want those extras. Even a pretty trick screwdriver set and rounded cables.