Personally, I've only recently learned about Bower and Grunt, so I can't particularly evangelize for them. However, a basic tool which offer similar functionality, which I certainly can give love to, it the nentuts+ fetch package for Sublime Text 2/3. It allows you to, as the GIT repo so concisely puts it: Fetch the latest version of remote files and zip packages. It's great!

https://github.com/weslly/Nettuts-Fetch