Liquid cooling can be a scary proposition if you've only ever played with air. When it's your first time diving into the depths of liquid cooling, you can't help but envision a worst case scenario, one in which you end up accidentally soaking your motherboard and other pricey components with H20. Such horrific scenarios are becoming less of a concern as companies launch all-in-one liquid cooling setups, such as what you'll find on PNY's new XLR8 Liquid Cooled Graphics series.

Stock CPU coolers have their place, like in Aunt Mabel's machine or the spare parts bin. If you're planning to overclock the snot out of your system, a third party cooler should be high on your shopping list, lest you taunt the god of instability with high temps. There's another solution -- you could purchase a processor that's pre-packaged with a high-end cooler, only AMD and Intel haven't been real keen on going quite so far to encourage overclocking. That might change with Bulldozer.

Feeling wet behind the ears when it comes to liquid cooling? If so, Thermaltake's hoping to ease your trepidation with a new line of liquid cooling products that includes a special version of its Level 10 GT case and two additions to its Bigwater line. All three products are self-contained, all-in-one units that are purportedly easy to install.

PNY on Monday announced it was working with Asetek to "deliver liquid-cooled, high-end graphics cards that far outperform equivalent air cooled models," but stopped well short of providing any real details, like which cards would get the Asetek treatment and for how much. It looks like PNY was just waiting for the right moment, that moment being the E3 Expo that's now taking place, and has answered all the questions we had.