Hi GURUJI,
at the moment the Dragon Cam seems to be one of the best around, depending what's compatible with your receiver, but there are others. Getting the right programmer also depends on your computer, and set up, providing you have a dedicated Com port, on your computer or laptop, the Cas 2, with add on will do, equally so will the Infinity/Phoenix, but there is only 1 programmer that will program in Phoenix mode, using just the USB connection and that is the adteknik 3.6.
There are lots of sites to buy from, including:
_http://www.unapit.com/index.html
_http://www.goldwafers.com/shop/customer/home.php
e bay
and a load of other sites, if you do a search on google, for Dragon Cam, or any other satellite equipment, you should find a lot of sites.
Best wishes
Mickha