Hi,
If you can afford it the Horizon HDSM is an serious bit of kit. I have two with special hex files for BBC1, 2, ITV, 4 & 5 and it just pee's over those crapy buzzer things. They are easy to use and you can download from their site almost any sat/transponder or they will write you a prog. They are also go for vsat stuff which i do loads.