also the girlfriend was complaining about here computer being too slow (has an amd 5400 x2 )so I'd thought I go for a new cpu and shuffle my cpus around on my three computers and give here a boost in the process.
If it is for trickle down, then go for it!
A lot of people recommending ssd drives, I haven't really looked into those, those basically used for os drives? or do people just put there games on them for a boost? They seem kind of high in price. SSD's really worth it? Is there a real noticeable performance increase?
Well, what does a faster CPU give you? If someone swapped out your CPU with a faster one without your knowledge and you sat down to use it, will you notice a difference?
The thing is that with an SSD you
WILL notice a difference. Things just happen a bit "snappier" on your system (well, everything that runs from the SSD). It will only cut a little bit off the boot time, but Windows is ready to go the moment your desktop appears instead of the HDD rattling away and you waiting at an hourglass.
As for what to run off it, Windows 7, of course. Beyond Windows, it really has to do with your budget. The more SSD you can easily afford, the more stuff you will put on there.