If you have a decent amount of RAM (like 6GB and above, but you may be able to get away with 4GB), disable your paging file, or make sure that it is moved onto a different drive, you don't want to write too often to the SSD, more than is necessary at least. Also, don't defrag the SSD, it is completely unnecessary and will lower its lifetime by using up read/write cycles. Any other information depends on your planned uses for it.
Opinions will vary; I like simplicity.
1) I don't like disabling the page file. It is there for a reason. If it is needed, it is better to get a quick read/write to the SSD and not have an application fail.
2) The SSD is very good with small reads and writes. Use it.
3) Agree with no user defrag. But Windows-7 will detect that the device is a SSD and not defrag it.
4) The lifetime of current MLC SSD's is limited, but normal desktop activity will not put a dent in that lifetime. If you reach the limit, no data is lost, you just can't write any more. I wonder if you will get some sort of a warning??