[Hardware Question] SSD just for the OS?

[csThor]

I am in the process of planning an upgrade for my PC (don't bother telling me to wait, I'm still on an ancient Athlon XP 3000) and I am wondering if it does make sense to invest a bit of money into a small SSD hard disk just for the OS (which is going to be Win7 Professional). I'm thinking about a small drive, just 60GB or so (since the larger ones are still far too expensive for my taste) plus a normal 1000GB SATA-600 HDD for the other programs.

Is anyone deeper into that one? What do you think?