OK 320g I just got a couple days ago, it was a replacement from the one that went bad. it is at 43c. I have it partitioned into 6 drives and 1 partition is what I have my OS on. 80g is a temp until I get my 200g and that one is over a year old replacement, that is at 37c. 320g is a little over 2 months old no partitions and it is at 45c. I have 3 fans on my tower. It came wit 2 but I added 1 to keep it cooler. I removed the expantion card covers and set fan there. I have 2 fans blowing out air and 1 blowing in. Do you think I need to investing in a colling system or a new case. My current one is a Apollo ATX Mid Tower