I'm sure there's a lot I didn't mention. I've also reinstalled Ubuntu recently (I "upgraded" from 12.10 to 12.04 LTS :), maybe some apps are just not installed

I'm sure there's a lot I didn't mention. I've also reinstalled Ubuntu recently (I "upgraded" from 12.10 to 12.04 LTS :), maybe some apps are just not installed yet. p.s.: meld, kdiff3, pgadmin3, sublimetext2