With the firefox load time I was actually referring to the very first firefox load when the system had just started. 1 minute 20 seconds was accurate.
It would load much faster on subsequent loads. 15 seconds would be my guess.
Compare either of those to the SSD though and it is still night and day. The SSD loads instantly regardless of whether it is the first load or the 10th.
I think 64gb is a little small.
I have loaded most of the programs I need and 1 game, and I have used 62gb.
I would say that if you got a 128gb you would be fine; and not constantly worrying about filling it up. 256gb was probably overkill on my part space wise. But had I have been a big game player (I'm not) and been using the 50gb that an earlier person spoke about, then that would have been more clearly required.
As it is, I don't really need to give the matter any thought. And that is good.
I think the best compromise between cost and use would be the 128GB Samsung.
http://www.overclockers.co.uk/showproduct.php?prodid=HD-078-SA&groupid=701&catid=14&subcat=1427
I have benchmarked the Corsair P256 (which is a rebadged Samsung 256GB ie the same basic components, firmware etc). And it produces exactly the performance claimed, with no driver issues, or having to phaff about updating firmware etc.