NewEgg.com has the Seagate Momentus 500GB 2.5" 5400.6 ST9500325AS Hard Drive for Notebooks priced at $110 - $10 code EMCBCBCAH
[Exp 12/18] - 15% back using PayPal = $85
with free shipping. A good upgrade to tide you over to the days of SSD affordability. Here is the Seagate site
for this drive.