There are some Linux based C++ projects in the pipe. What IDEs should I go for that have some kind of "intellisense" in par with, or better, than the one of a bare Visual Studio (that is, without the Visual Assist steroids).
(Note that I didn't use the words "as good as, or better". I consider the Visual Studio C++ intellisense everything but good, hence the "in par with" words and Visual Assist comment).
I would suggest MonoDevelop. I think they already have a plugin for C++. I found this article out. :D
A couple of years ago I did C++ programming in Eclipse with the CDT extension and I gotta say it did a reasonably good job with its intellisense-like feature. Certainly on par with VC++, probably better. As this was in 2008, chances are they have improved it since then.
The best completion in my experience has QTCreator (don't be scared by the name, it doesn't require you to use QT).
None. Eclipse and Qt Creator are popular choices, but they have nothing on VS.
I generally like KDevelop 4 a lot and their code-completition is pretty good, too :) Also it integrates nicely with gdb. You can read some more about it in the release statement
Well, I use SlickEdit. Yes, it's not free, but it's the best I found. I tried many others, but Slick is just much, much better. KDevelop is nice, too, and it's free, but SE is better to me. About Visual Studio - I still think that it's just the best. Its intellisense is brilliant, the debugger too.