I've owned 2 Intel 80 GB SSD's for over two years now and use them on a daily basis.
While this may be an old post, I want to point out that the MTBF on most SSD's is 1.2 million hours+.
I have yet to have a failure and used to put both the swap and all temp files on my 250 "D" HD on my XP desktop machine. On my Windows 7 laptop, I use an adequate size swap file.
This was a waste of time and now everything is back to the SSD. Why? Because I want a FAST machine. Why bother to put all that junk on your spinner drive only to discover that "my machine is slower than I thought". Not to mention, if your HD fails, it may corrupt the SSD leading to a full OS reinstall.
If you value speed/performance and reliability, put all that stuff on the SSD partititon.
These two drives have many hours, have been shifted from machine to machine and they just plain rip! Yup, I've even defragged them about 3 or 4 times a year and they are far more robust than any HD I've ever owned.
FYI, I clean all the temp files, then defrag, then run the Intel Toolbox and it's killer fast, as fast as the day of the OS install.