I bought an 80GB Intel X25 SSD from Novatech just a few months ago for a new build. I think it was on offer; I remember it being great value.
I have the 80GB SSD partitioned as 50GB purely for the OS (Windows 7 Ultimate), and a 30GB partition purely for apps. Then I've got two 1TB WDC for data (including work, multimedia, application installers and ISOs, VMs, etc) and backups.
Set up like this, my machine boots from POST to the Windows logon screen in 8 seconds.
So I would definitely recommend this disk. It's rapid and it's silent. If I had had more money at the time, I would have bought a bigger one. But that said, I've currently only used about 40GB of the SSD, and there's plenty of stuff installed on my machine.
I really like Novatech too.
If you do buy the SSD, there are quite a few things you can do to squeeze more performance out of the machine. SSDs are very quick for reading, but not so good for multiple small writes. Consequently, little things like moving your IE temp storage to your spinning disc can really help.