Reply to Need help on which laptop to pick for djing...13.3" or 15.6"?

I'm in possession of these two laptops below (have not opened them yet) and can't decide on which one I should pick as far as using it with Traktor Pro and possibly with VDJ as well:

Acer 15.6"

http://www.staples.com/Acer-Aspire-V...product_130417

Lenovo 13.3"

http://www.staples.com/Lenovo-IdeaPa...product_141488

I know the screen size is one big difference between the two (I'm currently using a 14.1" Toshiba that is quite a few years old and very underpowered), but I can't decide if going with the Acer (which has backlit keyboard, bigger screen, DVD drive, touchscreen, but weights alot more and has a lower processor) is better than going with the Lenovo which is an ultrabook (very lightweight, much better processor, but no DVD drive, no backlit keyboard).

I do like the backlity keyboard feature of the Acer and larger screen, but does those things outweigh it being alot heavier and having ain i3 vs an i5 in the Lenovo? Would I really have an issue with the smaller 13.3" screen of the Lenovo, no backlit keyboard, no optical drive?

Any opinions or recommendations on which way I should be leaning here and which feature is more important and critical to djing?