Did you pick Mint because it ~feels like Windows~? On my Windows machine I use Sublime Text 2 rather than Notepad++. I haven't tried gedit but it looks promising. If you're using GCC, I suggest getting 4.8.0 (as it's the newest release). Hell maybe you'll finally get to play around with dat C++11. Also, what stopped you from contributing to github before! If you used KeePass like me, you can use
http://www.keepassx.org/ as it is similar and a port. Also you can actually get MinGW (with the windows.h header and all) in Linux, though I don't know how that works. You can use Wine as well.