Dedicated server capacities for a private blogs network ?

I'd like to create about 200 blogs and need to run them on a dedicated hosting .


Blogs will be various CMS running on SQL database , so i know i should look more with a SSD harddrive .


but i'm more worried about bandwidth and CPU capacity .
I have no possibility to evaluate traffic...

what should i buy :

- SSD / 16 Go DDR3 / 100 Mbps
- SSD / 24 Go DDR3 / 1 Gbps Lossless
- SSD / 24 Go DDR3 / 10 Gbps Lossless
- SSD / 48 Go DDR3 ECC / 10 Gbps Lossless
- hybrid ssd/sata2

Someone know a bit about that ?

thanks !