In my meek opinion, referencing the tool notion, a handgun should be an extension of the user. Ergonomic, good weight, just the right recoil. All these things are dependant upon the user. I suggest, and many may agree, that if you have a range local to you that will let you rent a wide variety of makes and models, you start there. See what feels good to you. Find out what caliber you are comfortable with, then research the price per round and decide if it fits the budget. Also, if you find a gun you love, but the price is to heavy for your books, don't give up! There are many knockoffs out there that I consider "quality" firearms. If all else fails, you can never go wrong with a 1911. If you just use the 45 upper, ammo can be costly, but as a whole the gun is a great beginner. Also, I think its better to start with a large caliber firearms, and then move down. With me, it gave me 100 time over the control on smaller calibers.
Hope this helps, and I didn't ramble too much.