I got a new drive and its working. At what point in time should i worry about cooling it. The drive is a 250GB hard drive 7200rpm with an ATA133 interface. It was just warm to the touch thing morning and made me think of cooling it?
Up to you. It's hard to find a drive that ISN'T warm to the touch.
Cooling it may not be a bad idea no matter what drive you have. Especially now that they're lowering the warranty to one year around the block. But look to spending around $40 for an active cooler. Here's some HDD coolers
One is passive, but remember that air has to move around it to be of any real effectiveness.
I still don't cool them other than a simple fan that blows over them. That's enough for me. I've got one big 120mm fan blowing over each pair of drives in the stacker, and my big chieftec dragon has one 80mm for each pair. No failures yet.