Welcome to the forum Gaz225
From your post I assume that you are looking at an alternative system. There are many budget systems around, it really depends on what you expect out of a system and how much money and time you have available. Just be aware that unless you go for a system such as a technomate 1000 or 1500 that has lots of unofficial support you may well be disappointed. There is not a lot open at the moment using cams on some satellites yet on others there is quite a bit hence I would go for a motorised system as opposed to a fixed system which will give you flexibility