I purchased an MBP 13" 2.3 Ghz about 3 months ago. I've been having several problems with it and Apple phone support thinks it may be a logic board issue. They told me to take it in to an Apple Store to get it fixed or replaced. I'd prefer to have it replaced if possible, because my previous experience (20+ years) with Macs is that once the logic board fails it's all downhill from there. Problem is, I no longer have the original HDD that came with the MBP. I put a SSD in it right after I bought it, and sold the 320 GB HDD along with my old MacBook. I would like to buy a new 320 GB HDD and put it in the MBP so it can be replaced, but I'm not sure what brand came with it. Can someone tell me? Is it a Toshiba? Hitachi?