Yes and yes.
The FN-series of auto-loading battle rifles have an interesting history dating back to as far as the 30's or 40's, before WWII (or, "before
the war", as Art Eatman would call it.
).
The original design was a .30cal Garand-looking weapon, called the FN-49, but it's major downfall was it's production cost. It was just too damn expensive to really put into a full production run to outfit an entire country's military. By today's standards, it is said that the same rifle would've cost somewhere in the $3000-4000 range, per rifle!
Of course, that didn't stop the designers. After WWII, the gun was given a complete facelift, into the FN FAL that we know today. It was designed into the new "assault rifle" style of weapons that were starting to become so popular, although, by today's standards, it's considered a 'battle rifle' because of it's size.
I could blah, blah on about the history and effectiveness of the FN FAL rifle, but guys out there on the net have made much better web pages on the subject than I relate to you here. Here's a few to get you started:
John Landry's page on the FN-49
H.T. Dang's Short History and info on the FN FAL
THE web discussion board for the FN FAL rifle. You might as well visit this place, because you'll definitely join up when you buy your FAL.
It's definitely going to be a very effective deer-hunting weapon. It's calibered for the 7.62 NATO cartridge (308 Winchester), and that's one of the major rifle calibers used by big game hunters today. Practice ammo can be had at dirt-cheap prices in the form of military surplus, so you are going to have a great time getting to know your FAL without busting your wallet.
Almost any accessory under the sun is available for it, including scope mounts. They are plentiful and easy to find.
Good luck in your decision.