Yes I wasn't too happy ditching my Hauppage as it had served me well for some time, but I had read good reviews for the TBS 6925, particularly as Crazysat has given it 'added value' by writing some excellent software to enable spectrum analysis and improving blind scanning over the TBS application.
The best way to obtain the card I think is to order it from buydvb, who will make arrangements to deliver it to you from China. Took about five days to arrive to me.
_http://www.buydvb.net/tbs-6925-pcie-dvbs2-tv-tuner-card_p32.html_