Japan

In a couple of months (maybe more) I will be building my first PC. I've been reading some posts here on the forums and I see people asking for help with their builds linking the parts or builds from different sites that facilitate this.

My question is, does anyone here lives in japan and know a site that works in a similar way? or if I will be asking for help in the future will I just have to link US sites and they maybe try to get those parts here in Japan.

A popular site that I know sell computer parts cheap is http://www.1-s.jp/ but I would really like to find a equivalent of those US sites where you can post your whole build and people can change it around.