I love Glocks. You'll find those that hate them and those that love them. I would borrow or rent one to shoot before you buy because some people dislike the feel in the hand. Depending on how big you hand is you could for with a .45 ACP glock and get a holster and some ammo for under your $700 price point.
Also are you planning on making it a carry gun as well as a HD gun? If you are planning on carrying something a little smaller in physical size would be better.