Thanks everyone, I have additional questions...weighing the costs of single boxing 5 compared to doing it the hardware way and I'm kind of leaning towards doing a single box or 2-box with 2/3 or 3/2. Is anyone doing this and have good frame rate in pvp? I'm talking quad core + 8gb and 2 8800's + Vista. I currently have a Gateway 24" main display and am considering using either 2 20" or 22" side monitors for the other 4 slaves.

Getting back to the X-keys pro...I'm dying to order one so I can start using it with my dual-system I have now but still undecided which way to go.

Can you chain a ps2/x-keys pro and an x-keys 20 key pad together and use a main usb keyboard for the system?

Oh also, are the x-keys modifiable at input time meaning if I press shift or control or alt on my main keyboard and press an x-key (say it is just a plain "a" for example), will the final input on the computer be an "A" if I'm pressing shift? I tested this with my n52 by making one button an "a" then pressed shift on my G15 keyboard while pressing the n52 button and it did modify the n52 input so I got an "A" instead.

Does the ps/2 x-keys & pro work ok with with keyclone?

Does anyone know if the USB x-keys can be programmed with multi-lingual keys by using a ps/2 multi-lingual keyboard? I found one relatively cheap on-line and I like the idea of using keys I normally don't type to program into the x-keys units.

Anyone use the USB x-keys in resident memory mode so you don't have to have the software running after it's programmed?

I wanted to stay open to use hardware multi-boxing but looking at the costs I'm figuring now if down the line I spend a few thousand on 4 additional systems + all the connecting peripherals, what's another $170 for a PS/2 x-keys pro? So that's why I'm still kinda stuck thinking about the usb x-keys because it seems easier to program without additional purchase of that PS/2 Recorder.

Thanks in advance!