i have the gigaport HD. it has very low outputs, so i would not recommend it without a preamp(my jl cl-rlc's are working great), and the ASIO drivers are useless. the driver is listed only as a output, with no input, so there is no way to get audio into a vst host to output to the card..
at least, i have not found a way yet-- if anyone figures out how to do it using the gigaport hd's asio driver without A4A, please let me know..
A4A is a great way to get the better audio processing quality through the vst host, but it still uses the WDM drivers..
i have windows 7, and have been just using the WDM driver for the sound card in audiomulch and cannot tell the difference..
it might be worthwhile to try that cheap sound card-- at the very worst, your out $25, and if your anything like me, you probably have plenty of things you can order from newegg, so between the rebates, and discounts, it could really almost cost nothing..