You have not made it very clear what channels you want, but bear in mind that if you cancel Sky you will still be able to receive ITV1 (&HD), Channel 4 HD, FIVE(&HD), FIVER (&+1), FIVE USA (&+1) and SKY3 on your 80 cm dish. You will also still have access to all the BBCi sports coverage via the red button on channel 503 - page 3001.
Additionally, you will get everything shown at _flysat.com/28east.php as being on ASTRA 2A south, ASTRA 2B south and Eurobird1 fixed (although a couple of the TPs are mis-labelled there) that is not encrypted (news, movie, general entertainment and movie channels).
Also, as mentioned, at 7ºW you can get some good telly on a 65 cm dish from Nilesat (see _http://www.gazettelive.com/forum/index.php?topic=2183.0) but you will need a separate dish for this if you want both these options.