For the Biostar board, you have to go to the 'mainboards' product link, where you'll find the following:
M7NCG harnesses the revolutionary NVIDIA® nFORCE2? designs, delivering the awesome graphics and system performance. It is a complete solution with the powerful GeForce4 MX graphics and the DualDDR memory controller that nicely realizes the DualDDR 400 architecture to a 6.4GB/s bandwidth. Furthermore, you can enjoy the 800 MB/s hi-speed bus between North and South bridges that the incorporated AMD HyperTransport? brings. Speaking to audio excitements, M7NCG delivers the Dolby® digital 5.1-channel for realtime cinematic 3D positional audio. In addition, AGP8X architecture, IEEE 1394a, USB2.0 and LAN are also included on this graphics motherboard.
For the MSI, you have to take a similar route: products->amd nforce2 where you find:
K7N2G-L
High Performance nForce Gaming Platform with Powerful GeForce4 MX Graphics
266/333 MHz FSB, Socket A, AMD Athlon / Athlon XP 2700+
Ultra DMA 66/100/133, 3 PC266/333/400 DDR-DIMM Sockets up to 3GB
ATX Form Factor, 5 PCI, 1 CNR, AGP 8x, 6USB
Ethernet 10/100 LAN
Dunno why newegg doesn't mention the integrated graphics for either board. I'm kinda leaning towards the biostar for the integrated IEEE 1394 (I'm gonna be doing DV transfers, so integrated is nice, especially for $108) although the MSI includes a TV-Out riser if I decide to use this for some HTPC stuff...