Hi,
Built in 6 channel.... = 6 Channel will mean 5.1 dolby style + standard line out.
Support for soundblaster and fm... = Basically for older dos-based games, not important with Windows - FM synthesis is the horrible sounding MIDI sounds.
Soundfonts? = No, unfortunatly not - and trust me, the onboard MIDI will sound pretty lousy - i understand that there's some respectable software synthesisers nowadays though....
Latency & S/N = Don't know for that motherboard, but it's exactly the same chip as mine and it's laggy as hell using cubase - Mainly because of the lack of ASIO drivers....
Where you getting this from? PC world?
If so, check here
http://www.ebuyer.com - I can recommend them - dirt cheap, good quality stuff - My new Elite motherboard just set be back 40 quid! With support for DDRAM too!
Bargain.
Hope this has helped,