Tired of researching, 3ware 9750 or lsi 9261 and intel x-25mg2 or vertex turbo?

[One_Hertz]

In all honesty, considering the number of users and the functionality you need, SAS 15k rpm HDDs would be a much better choice for mission critical work rather than any MLC consumer SSDs. You could save some money, have better redundancy (afford more drives for raid 10), better reliability (5 year vs 3 year warranty), more space, and better error control.

Gigabit Ethernet means less than 120Mbytes/s at max throughput. You do need SSDs for this. Not even for small chunks of data.