choose a Rack to complete my system

acoustic zen silver reference ii XLR interconnect
Cardas Clear speaker cable
wireworld platinum usb cable
Focal Electra 1038 be II
Pass labs X350.5
Pass labs Xp10 pre
Oppo BDP-105
PC computer (size of CD player)

i need to buy also a DAC , not sure which one to buy yet

i took a pic:
I'd say Grand Prix Audio that is the best I've heard or owned though now I know there are a lot of other options out there. You could spend a lot on just a rack, though it can make a huge difference. Probably I think you don't have to spend that much to get a good sound. I sold my Grand Prix racks because I could not stand the way they look. I messed around with some cheap tweaks and found that I am just as happy with the sound I get without the Grand Prix Rack. Herbie's Audio is a good place to start his stuff works well and is cheap. If you like the looks though and just want to set it and forget it then I think it's pretty hard to go wrong with Grand Prix racks. If you really care to tune your system to your liking a are will to put in the effort then experimenting with different isolation tweaks is going to get you the best results and save you the most money. If you have 5 grand to drop on a rack then you will probably be pretty happy with the sound you get from that too.
I recently purchased a rack system. I went with Salamander Designs. Many of there basic rack/shelfs systems can be customized to suit the users requirements and taste. I spent many hours on there web page going thru the build it your self options. My personal choice was pretty basic but I can add sides, doors or any number options if the mood strikes.
I also recently purchased a Salamander Synergy rack and I like it a lot. They are modular and come in different shapes and sizes and, like the poster above pointed out, you can build a virtual one on their web site.