hp vs Seagate hard drives

I picked up a couple hp hard drives - 146.8 gb - and trying to do some research on them. All I can find on Ebay is Seagate for Model # ST3146707LW. I already got disappointed on the RAM sticks I picked up there. Only consolation is that he threw the hdd's and sticks in with two servers. Now I'm trying to figure out if these hard drives are worth the same as the Seagates.

probably made by one of the same companies.

I've had hp/compaq hard drives sell on ebay. I have yet to have a Seagate SCSI sell on ebay. I don't really know why, but that is my experience. Oh, and for full disclosure and perspective, OI've had over 100 hard drives for sell on ebay. I've sold about 10-15. I no longer have hard drives for sell on ebay.