well, my chieftech case, which is very similiar, if not the same derivative of that make, keeps very cool. I used to have a midtower and that biatch cooked up real bad-maybe b/c it only had 2 fans. This case appears to have 5, which in anycase, is alot better than 2 no doubt. Ok so lets say that there both worthy of proper cooling. which one will be easier to work with. Now, comparingt the two, the full tower is more real estate-more space for your motherboard-some nvidia nforce2's are HUGE, more room for fancy ass sh*t like led's and crap-more room for drives, cables and GENERALLY -better air flow. that being said-its a lot bigger ALOT bigger!-if your space is limited, go with the other mid sized one-but beware-small tools needed! The power supply: today's hardware juice requireemnts arent that high-my 420watt turbolink(not the best quality), does just fine -i got 2 cathodes and loads of other power hungy junk-550 is overkill-period!