familiar brands to me, so nothing negative...
all you need to do is find the board with the specs you want, and maybe color, lol
both manufacturers are taiwan based, which translates to a trusty 85% chance they fabricated top quality products...no joke (though of course, some may offer their opine otherwise)
here's some 2k8 reviews on asrock
ASRock Penryn1600SLI-110dB NVIDIA 650i chipset mainboard review - Introduction
note the first paragraph on asrock
AnandTech: Computex 2008 Day One
in chrono...
ASRock X48TurboTwins-WiFi Motherboard Review - Hardware Canucks ASRock P45R2000-WiFi Motherboard Review - Hardware Canucks
I did all those searches for you on dialup...that's pretty good

you can do some for foxconn yourself, hehe