waah, looks a bit messy there, but i guess its only seen when u open the sidepanel rite?the viewable part when close the panel just the mobo, so u can just concentrate on that part. Bro, better if u can sleeve all the cables for ur extra fans and front panel, will looks much better i think.

Those cables coming from the top of your case, stuff them above your cd drive.
Sata cables from your mobo, pull them straight to the right.
Unused wires from psu, stuff them through the same hole that you're using to route your 24 pin cable.
Your rear fan wire can go thru the space between the gc and the mobo.