Today is a great day to buy a new piece of hardware. Right now, the price-to-performance curve is very good and there are a lot of good systems to choose from. This applies to more mobile products like laptops and Ultrabooks as well as full-on desktop systems. If you're a gamer, something like the XMG P303 Pro Gaming Laptop at HardwareHeaven may get you excited. This beast is only a 13.3" unit, but packs in a lot of hardware - including a Haswell CPU and a GTX 765M graphics card.
Also on the mobile gaming front is the PC Specialist Vortex IV X780 Gaming Notebook at eTeknix. As the name implies, this unit has a GeForce GTX 780M inside and is powered by a Quad-Core Haswell 4700MQ. This is crazy powerful and will probably outrun many of your desktop systems. It also comes with support for BluRay as well as a pair of storage drives and a mere 16GB of DDR3.
Not to be outdone with the graphics is the EUROCOM Racer 3.0 over at HardwareHeaven. This beast is also crazy fast and is a good choice for the European market for sure.
On the "professional" side of things we take a peek at the OcUK Professional W540 UltraNote 14" LED Ultrabook at eTeknix. This is a nice looking machine that will fit in nicely in just about any laptop bag and would work great just about anywhere. I still prefer gaming on a desktop, like the CyberPower PC Zeus EVO Lightning at NinjaLane. This is a decent rig that I wouldn't mind showing off at any LAN party.