Need more storage. Do i raid or upgrade?

[thingemajib]

so the 500gig 7200.12 'cuda is nearing its limits. Whilst im happy speed wise, i wouldn't mind something a tad faster still. Do i:

1) get another one and go raid (£24 in clearance)?

2) get a single 1tb 7200.12/sammy f3 (£40-45)

3) splash out a bit on a 1tb wd caviar black? (£72)

 

[thingemajib]

oops, quick edit is in order.

enigma, this will be my main drive(s). speed is of the essense here (ie, 7200rpm drives)

kg648. Im only looking at 1tb at the mo. Im not looking to spend £120 either, haece my 'splashing out' at £72

 

[thingemajib]

nuh-uh, considered SSDs before. For me they're just too dam expensive at the mo. £100 +the cost of a f3. Thats almost £150. Im talking a third of that.

Let me bring up my point again: Splashing out is in the region of £70