How automatically download current versions of popular software? (like Acrobat, Firefox, Opera)

Solution 1:

What you need is: Ketarin

is has an db of software you can select from to download, and always keep downloading the latest version, also you can add your own, with very flexible settings

check it out over here http://ketarin.canneverbe.com/

Another option would be http://installpad.com/

read more about it on the lifehacker article http://lifehacker.com/211373/geek-to-live--automatically-download-and-install-your-favorite-software

Solution 2:

PSI and CSI from Secunia will help you keep up to date with critical releases for most popular software packages. PSI is for a single machine, while CSI covers your whole network. Their no-install OSI scanner is more limited but handy for quick fix family interventions.