Auxiliary foot bolt is a good idea, since its in the back of the house I would bother with a keylock. I personally would stay away from Pella but that is just me. As far as the screen the sliding screen will be much more durable and I think stand up better to your boys

I know I'm late to the conversation here but I just wanted to follow up in case anyone else had the same question. Retractable screens are just as durable as fixed screens but much more pleasing to look at. A quality retractable screen, like the Plisse by Screen Solutions inc, should come with a lifetime warranty that provides peace of mind when investing the associated money into your home. Check out www.plissescreen.com and see for yourself why retractable screens, and in particular the Plisse retractable screen, are a better choice than traditional fixed screens.

Here is a link that might be useful: Screen Guy Blog

I see that the Plisse suggestion was posted by a Plisse employee so I want to ask whether anyone else has a Plisse screen and likes it. It looks great to me, so thanks Doug the Screen Guy (Katrina) for posting about this 3 years ago - I'd love other testimonials as well... I do like that the Plisse is $200 or so excluding installation versus Phantom which I've got a $500 quote for - probably both are good but Plisse somehow seems better and not just the price.

Any more feedback?