For about $1000, Dell offers its X38-based Precision T3400.

Key features of the Dell Precision T3400 include:

• A single socket supports new Intel®Core™2 Duo and Extreme processors for tangible performance benefits. These processors feature the new Intel®Core™ microarchitecture with the Intel X38 Express chipset. This technology provides a shorter pipeline, lower clock speeds and higher (1,333MHz) front-side bus speeds to help deliver performance gains over comparable Intel®Pentium®D and Extreme Edition processors.² The range of processors includes dual- and quad-core offerings and the capability to run both 32- and 64-bit operating systems.
• Extensive memory and storage options. The Precision T3400 supports 800Mhz ECC memory from 1GB to 8GB. Customers can order the system with up to four³ hard drives and choose from a range of SATA and SAS options and RAID configurations.
• Industry-leading workstation-class graphics options, from entry-level 2D to high-end 3D. For demanding 3D applications, the PrecisionT3400 is available with the latest NVIDIA Quadro FX 4600. The Precision T3400 also supports dual-graphics configurations and supports up to four external displays.
• Smart chassis design. The compact chassis allows for both mini-tower and desktop orientations and features rotating optical drives that can be installed horizontally or vertically for optimal loading and functionality.