Is it worth $640? This is the musiciansfriend.com link: http://www.musiciansfriend.com/srs7/search/detail/base_id/51405/rsrc=00990 But if you would rather, here is the gist of MF's text: A complete 24-bit plug-and-play digital audio and MIDI workstation. Hardware includes PCI card plus breakout box with 8 analog inputs, 8 analog outputs (2 XLR, 6 - 1/4"), 8 channels of ADAT optical I/O (usable as 2-channel optical), and 2 channels of coaxial S/PDIF I/O, all 24-bit resolution. MIDI in/out. Footswitch jack for QuickPunch recording. 2 additional monitor outputs, plus a headphone output with separate volume control. 2 of the analog inputs include mic pre-amps with gain control and 48V phantom power, reducing the need for an external mixer. Includes Pro Tools LE software for recording and MIDI sequencing with Real-Time Audio Suite (RTAS) plug-in architecture plus Windows XP support. Both hardware and software are made by Digidesign, so compatibility is guaranteed. Upgradable to a Pro Tools TDM-based system. Easy to use without an intensive learning curve, so you can begin recording right away. Not compatible with Celeron chipsets.