Where can you buy those colored power supply connectors you see in those color scemed rigs.
Corsair sells them for their modular PSU's. Bitfenix has cables also but there extensions. I am pretty sure the cabes are only for the 1200, 850, and 750 Watt PSU's.
Edit: I found the website for Corsair's cabes (mind they can only work with Corsair's PSU's):
http://www.corsair.com/en/power-supply-units/psu-accessories-1.html
I have a corsair tx750m which is semi module. I don't plan on buying any at this point,but I will in the future. I have been curious for awhile now since I always see them in those highend ethusiast rigs.
those look like bitfenix alchemy cables.
Make em.
Get:
http://de.mdpc-x.com/mdpc-crimping/mdpc-crimpzange-160-crimps.htm
http://de.mdpc-x.com/mdpc-sleeve/sleeve/sleeve-small-weiss.htm
http://de.mdpc-x.com/mdpc-sleeve/schrumpfschlauch/pre-cut-schrumpfschlauch-small-weiss.htm
http://ftwpc.com/cables-and-sleeving/sleeving-tools/the-original-molex-mini-fit-jr-pin-extraction-tool.html
Make your own custom length, sleeved cables. Costs less, looks better. But dont do it you dont have a 100% modular psu, or it turns into a warranty voiding nightmare.
Tallgeese has got the right idea and if you do decide to go the route of DIY Lutro0 from OCN has a series of videos on youtube that can help you out. Also check out his guides and FAQs on OCN just go to his profile and look in his signature for them. Great stuff!