Tvheadend

Hi guys.

I would like to know your opinion about those three devices that I'm thinking to buy:
1 - Hauppauge PCTV DVB-S2 Stick 461e
2 - Hauppauge WinTV Nova-TD Stick
3 - PCTV microStick DVB-T 76e

My idea is to build a stream box with this radxa board (http://radxa.com/specification/) with support for DVB-T and DVB-S2.
Anyone has experience in use more than one DVB-S2 usb in the same board?

Thanks.
Kind regards,
dimitri