Alienware keeps on cranking out the workstations, with these two new models aimed at creative professionals, hard-core power users and film editors. The 7500i packs a single Intel dual core Pentium inside, while the MJ-12 7500a features dual-core Opteron processors. The real fun starts when you take a look at the new motherboard this thing is using. The NVIDIA nForce4 SLI X16 MCP features two full-bandwidth 16-lane PCI Express slots, which amounts to a veritable superhighway for a torrent of data. That motherboard also lets you plug in two graphics cards in an SLI configuration for the ultimate graphics blast, a highly sought-after capability for gamers and high-end graphics users. Keeping up with that speed are RAID-0 drives offered in configurations up to 2 TB. Keeping things quiet is Alienware's acoustic dampening option, which we've tested here and it actually works, and hardcore overclockers will like the optional liquid cooling. Rounding out the package is a workstation-class Quadro FX graphics card and more RAM than you can shake a stick at. For all that power, pricing is relatively low but could get high in a hurry as you add options, starting at $1599 for the AMD Opteron-based MJ-12 7500a, and $1789 for the Intel-based MJ-12 7500i.