Hi SL......It can be a bit of a minefield when trying to select a pair of binoculars and, as indicated by fourteen85, it is most important to test them before purchasing. Furthermore it depends upon the use for which you intend them.
I agree with what jomifl has said about binoculars in the region of 8x (magnification) being the maximum for hand held use. Anything higher will give a shaky image; unless mounted on a tripod. Mine are primarily used for birdwatching and are Swift 'Audubon' 8.5x,44. However I have had them for about 30years and would hate to have to pay today's prices for a new pair.
If you are thinking of buying on the Internet, I suggest you first handle as many different makes and models in a local store and then you will know the ones for which to possibly opt. Also search out as much detail on the Internet, about the lenses, body construction, weight etc. The following could be a starting point:-
http://www.camera-sho...og/binoculars_uk.html
Ron.