Wow, that's a good deal on the GPU block, for sure.
The chrome Raystorm looks great, as does the red coolant/tubing especially with the Trident X. A mate of mine had some old school original Trident, excellent RAM, and I used to have a set of RipjawsX. Great looking stuff.
How do you find the Phobya pump? I've always gone with a D5 Vario myself, never really explored other options other than contemplating a DDC but deciding against it.
Have you got a clearer picture of the res? I've yet to see one installed in a well built system, looks good from your first pic but hard to make it out well.
As for the upgrades, yeah, there's not much you can do, more poking fun than anything
another 690 is unlikely to gain you much in terms of gaming performance, and the 900D would be mostly pointless unless you needed the space for more cooling, which again is unlikely as your 360+200 should be more than adequate. What sort of temps do you get? Have you overclocked at all?
How do you find the Revodrive? I found the original and the X2 very finicky, lots of compatibility problems although partly the board manufacturers' faults due to lack of space in the option ROM for booting from a PCI-E device.