too hot
Ya i ahve extra fans in mine ol 450 i tro to keep it low, around 68F or 20C. its worht it to keep the temps down. Those 160 gig drives wont be as fast as teh 120's I have never seen a 160 gig drive that wasnt 5400RPM. If your doing video or any speed intensive tasks the 5400RPM will slow you down. Most 120gig HD are 7400RPM, this speed is much better, just that litle bit faster. The ATA 133 is great though, that will help speed a lot. well good luck with it all, and keep those case temps down. Thats why I took off the plastic around my PM450. Allows a lot more ventilation. Took the speaker out, I ahve a small fan pulling are in from the speaker grill, and a huge exhaust fan in the back blowing lots of hot air out. My comp a little noisy as the HD's make a lot of noise coupled with the fans. The worse thing about the noise are two 120gig western digital drives I have. I love them, but becasue they are identical the noise frequencies combine and make a lot more noise then 2 different drives would