About SSD's... I still don't find them worth the money. You just really should decide if those few seconds / a minute of speed increase is worth the extra money. Currently 2TB HDD's cost 0,03 euro's (0,026 pounds) / gigabyte, the cheapest SSD (which is also one of the slower ones, with SSD's, the more you pay, the faster they go) around 120 gb's (actually a 128 gb, which is cheaper then the cheapest 120 gb) is 0,92 euro (0,8121526875 pounds)/gig. That is 30 times the price.
For me personally, 30 times the price for just a bit quicker acces to my data is just not worth it, but it is a personal decision you have to make.
for reference, the disks I looked up:
Corsair S128 128GB
SATA-300
€ 117,81
Samsung EcoGreen F4EG HD204UI, 2TB
2TB HDD (Retail) met SATA-300-aansluiting
€ 60,-