the fan should work alright since its almost entirely enclosed in the middle of the unit. I'm guessing its probably going to be a variable speed fan based on temps.
also,dont shoot the product down before it actually gets tested. I for one like innovative designs. for those around when the big typhoon came out, most people said it wouldn't be any good just because it had the words "thermaltake" written on it...

nice work OCZ, hope to see some testing soon