S&W is having a promotion on the "trusty" Sigma 9mm SW9VE. It's a light poly (Plastic) frame Semi automatic that comes with two 16 round mags from the factory. The recoil isn't to bad with good knockdown power.
The gun has a good reputation for quality and reliability especially for the price. It fits most peoples hand very well, and is easy to point naturally.
As far as safely, the trigger is part of the safety. It a little longer firm trigger pull, so it is hard to have an unintentional discharge. Some people will tell you the trigger sucks, but those people either have weak hands, or never owned one.
The gun is $249 after a $50 factory mail in rebate delivered. Just find an FFL dealer that will do a transfer for a $20-$30 fee, and you have a good gun for under $300 out the door.
www.Budsgunshop.com has them for $299 "delivered" to an FFL dealer for transfer, before the $50 rebate.
TBS, then instead of buying one gun for $500-$600, you could afford a 22cal handgun for cheap affordable target practice which you will need to do from time to time. Trust me, the 22 will pay for it self in ammo savings over 9MM ammo, and .38cal's are even more than 9MMs which is also a good round if you get a revolver.
But if you have weak hands, you either need to get them stronger for pulling the trigger or get a gun with a soft trigger pull, but any gun can be worked on to make the trigger easier to pull.
And if you didn't like the gun, you could sell it for just as much or more than you paid for it all day long.