Oh boy -- binoculoculoculars...one of my favorite subjects to expound on...don't know why, it just is...
First off -- powers and sizes.
7x35 is considered too small for stargazing, but hey, if you've already got 'em, go for it...learn the sky before blowing any more cash.
That being said, if you're going to buy some, good starters are in the range 7x50, 8x42, 8x56, 10x50, 11x70 -- anything physically larger than that gets heavy fast, and you get the shakes.
Suppliers?
Orion Telescopes & Binoculars is an excellent place to start.
Check out their interactive
Product Selection Wizard for some assistance.
Big Binoculars and
Oberwerk are basically the same place -- the two sites cater to slightly different clienteles. Prices on both sites range from "That's so cheap, gimme two" to "!!!OMG!!! HOW MUCH???!!!"
This particular pair happens to go for about $12,495 if I recall correctly...
You may want to check out
Apogee's binoculars with built-in nebula filters. They're going for cheap -- I have it on the authority of the owner that these prices will be good until the end of the year. A set of 12x60's for less than $90? Hmmm...
Note -- whatever ones you buy, it's a plus if they're already set for tripod mounting. Some have a screw mount in the pivot, bigger ones have a captive post on a mount bar. The industry standard thread is 1/4-20, for a tripod. You'll probably have to invest in an L-mount to use the binos on any sort of mount. Stay away from the cheap plastic kind. Invest $10 or so on one of the good solid steel ones. Check carefully -- some manufacturers of larger binos will throw in an L mount (hint hint hint...at least one mfr listed here does that...).
Now, it doesn't matter how big or how small you go, eventually you're going to get a crick in your neck and shaky hands from holding these things over your head. It's time for a mount. You can go expensive (the parallelogram mount, on a tripod --
these are not cheap) or you can go much more inexpensive...
This little gem comes from
Helix Manufacturing and while mildly pricey ($40), they are very handy. A quick visit to your local hardware store for a standard-thread utility handle completes the setup -- I found a set of four threaded extension sticks, so I can stick in as many 16" sections as I need depending on what I'm doing. Three sticks for sitting, four for standing, five for overhead viewing (I bought two packs, for a total of eight bucks).
This pic shows my Apogee 12x60's mounted on the Helix holder.
Now, let it be said that I'm not shilling for any particular manufacturer, I'm just a satisfied user of some particular pieces of equipment. These pieces of gear may not be suitable to your tastes -- so be it. Hopefully there's something here to give you an idea that will make your evening's stargazing more pleasant. If that's the case, and our paths ever cross, first root beer's on me...