I am aware that I may be asking this in the wrong place. If so, mods - please point me in the right direction.
Anyway, I'm sure that you guys have faced this problem. I have 6 gigs of RAM and VS makes my machine crawl. This doesn't always happen. I've made sure that no other major, non-required processes are running other than a Chrome window, VS 2008 and occasionally Reflector.
I have Resharper installed, and I've turned off the Solution-wide analysis. I have one solution open.
This issue is really killing my productivity. It takes up to a minute to switch files.
EDIT: I have about fifteen projects in the current solution but no more than six are loaded at a time. I am running the most updated version of VS2008
You don't really say what exactly is crawling.
I would guess it is disk access causing the problem. If you happen to be using a laptop with a power-saving 5,400 RPM disk then it's almost certainly the problem. Those drives suck. A lot.
Snowbear had a good suggestion of using a RAM drive for your files. The tricky part is remembering to always copy your changes to hard disk.
Another good idea is using an SSD drive. A second good idea is RAID-0 hard disks, either Western Digital Velociraptors or SCSI 15k's.
Upgrading your hard disks won't just speed up Visual Studio. It'll make a difference to your whole computer experience. I really recommend the SSD option.