Drool, drool, solid state drives are on the way. They are as fast as traditional hard disks. They are about $1,000 per 64GB drive which is still expensive but coming down fast. Think about it as the logical upgrade for your current notebook.
new mainstream drives offering performance equal to the best mechanical desktop drives in most cases. The sustained read/write rates have increased to the 100/80 MB/s range. Capacities are now standardizing at 64GB with average pricing dropping to around $16 per-GB for the mainstream sector. The highest performing drives feature 120/120 MB/s read/write speeds with capacities up to 128GB, but pricing is around $29~$32 per-GB. In the high performance sector, we expect to see 150/100+ MB/s read/write performance shortly along with capacities up to 128GB around the current price range.