Wow, all these comments and only a couple of people actually helps the OP. Well I'm going to do the same. Best comment so far? Norton is a hog, haven't used it for years. What?? I've used Norton every year since my Win 95 days and it continues to get better each year Using 360 for the last 4 years. Windows 8.1 is a good OS, you just have to be ready for multi-platform usage. Laptops and desktops are not the only use out there anymore.

I have carried since 1980 in my over the road days, now I CC always with a S&W M&P Shield 9mm. Small and accurate.

Stick with the 70-200, the 24-105 at f4 will be just too slow.