So I have an HP dv9010us.

Currently running WinXP Pro (dumped MCE that came on it).
It has two drive bays, so I thought it would be fun to dual boot XP and Linux, one on each drive.
(Ubunutu/Kubuntu works flawlessly on this rig.)
Found a new SATA 250HD for less than $100 shipped with a $20 rebate.

Then I remembered that I would need a hard drive caddy to mount the drive in the laptop.
I did some searching on Google and found the right part number.
HP wanted $145.
WTF?!
Googled the part number.
Found a site that sells drive caddies that are not OEM, but they state that they are identical.
So I ordered one for just under $40 shipped.
It arrived in 2 days (before the hard drive which I ordered the day before).
And it is a perfect fit.
Now I just have to wait for the hard drive to show up on Monday. :-)

So if you need a laptop hard drive caddy, check out:
http://www.newmodeus.com/

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Todd Young