The exact cards I am using are WinTV-NOVA-T-DVB-T 90003 LF (Rev C2B0)
If the dual 500 works I might invest in one of these, but it would be nice to see it working with these Nova-T's
Interested to hear about your setup DrACoNus - is that in the UK? What High Def source are you using?
I live in Canada and I am running Gentoo Linux on my MythTV backend (portage developers do an excellent job keeping up with MythTV CVS and all dependent libraries) It's primary tuner is the Firewire capture hooked up to a Motorolla DCT6200 my cable provider does not encrypt any channels so I can grab the raw mpeg-2 stream for any channel I subscribe to the quality is amazing. My additional tuner's are provided by the Hauppauge WinTV-PVR-500 MCE this cards two tuner's only come into play when the DCT6200 Firewire setup is occupied.
I have LMCE 1.1 on Kubuntu installed on three frontends around the house (one of the frontends also hosts the LMCE core) and they only run MythTV as a frontend to stream TV off of the gentoo box. This setup works great for me I can keep all my content and recording on the stable gentoo platform and not have to worry about playing around with the settings on my orbiters/core.