I've been reading a lot about RAM and it's apparent to me now that 1600 will be enough so I'm dropping it down a bit and saving some money.
I'm also going for an 80 plus PSU for more efficiency - looking at the OCZ ModXStream Pro 700W Modular.
This machine will hopefully be great for portability and going to LANs - the small light case with its carry handles and 2 SSD drives should make for an easy trip.