I think some more research would help you.
Google "binoculars for astronomy" and try to find some good articles.
Go through threads on this site:-
http://www.cloudynights.com/ubbthrea...ard/binoculars
Look at the "Best of" thread there. Yes, many there are specialists spending big bucks for optimum performance, but you'll soon pick up what matters for good binoculars.
Read AOE's discussion of binoculars:-
http://www.aoe.com.au/binocular_guide.html
Though I have never tried, no-one seems happy with zoom binoculars for astronomical use - the ones you have located are zoom. Don't buy any with a red coating on the front objective lens - they are for daylight use.
Good luck.
