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Outter
Tsk.. where are these guys manners?

anyway..
There are some hit and miss things going on with the KT600 platform from what's been written by a few who are trying them out.
If you are after an standard ATA133 setup, then getting a slightly older but revised, stable as a rock board is no problem

Just grab a $30 Highpoint 372 card. Id actually recommend this because this is a biz rig, not a gaming, tweaking setup.
Im using the ABIT nForce2 NF7-S, which only has SATA but a PCI highpoint card gives me as good performance as onboard. There was an article (which I can't find damnit) published eons ago, that noted the differences between onboard & PCI. They were a mute point because they were so close
Buy for the needs for the job

which I feel in this case is go with what you know and trust + a $30/$40 PCI highpoint 372 or 374