So, you'd see all kinds of internal and external systems, with tubes hanging all over.
Zaward, one of these vendors, has come out with a very unique internal water cooling system. The very
internationally named "Xian Quan II" - don't ask me what it means till I enter Higher Chinese in a few years - reminds
me most of one of those medieval or Arabic-style secret devices from Prince Of Persia game series.

Of course, the green reservoir cylinder is a dead ringer for a "health potion" from that game, and all the decorations on the radiator awaken similar associations.
All that aside, it is a very compact yet seemingly sufficiently powerful device at least for overclocked dual-core CPU owners. Thick tubing to the CPU waterblock helps the cooling performance, too. µ