hi from scotland

i have a skybox f5 i was thinking of a upgrade .as this dam box has no dts input , also the epg is crap , it only lets me see whats on in the next hour ,,,,any ideas from anybody what a good box is to buy, that i can still transfer my line into, i have a bose sound system 5 speaker and sub not getting my moneys worth out it as it only has analogue stereo out... i know there is people dieing of starvation in the world every day and this seems trivial .. but being a bit of a geek lets me off !!!! cheers to all