No. Like Rusty I didn't have any luck with several motherboards (HTPC board is an Asus P5B Deluxe) and a ST Labs PCI serial card with a Moschip IC. The Sunix was only $25 so didn't break the bank. At first I didn't think the Sunix was going to work either until I came across a post about that carddetect setting.
As for software, I'm now using acamd and dvbviewer beta. My channel change times are approx 1 sec. The final step of my setup is to get multiroom subscription when the new dvbsbridge is released. 2 sky DVBS and 2 Freeview DVBT.