I have a Vaio P with a HDD of 60 gigabites, and i´m tired too, for wait 5 minutes to start windows ! =D
I now a SSD compatible for vaio p (but i still have not bought this SSD because I am short of money), you can see it on this link:
There are 3 models with diferent space options:
RCP-IV-Z1832-MC: 32 GB
RCP-IV-Z1864-MC: 64 GB
RCP-IV-Z1828-MC: 128 GB
You can buy it on amazon or ebay, you just need to search by the model (RCP-IV-Z1864-MC for example), or descripiton: Runcore Pro IV ZIF 1.8" 64GB MLC SSD.
On amazon.com, you can visit this link:
On ebay.com, you can visit this link:
On youtube, you can see how to open and change the hdd for ssd, step by step: http://www.youtube.com/watch?v=Qq-Q31fc5...
Good luck !
Sincerely, Marcelino Del Panta.