When I asked this previously I should have mentioned that it's particularly a light-weight IDE that I'm after, so I’m having to ask again as a different question.
Something that is not just a text editor, is light-weight and versatile, that would suit Strawberry Perl, the GCC that comes with MinGW, GDB and Subversion. Something that when I want to use it is straight-away available, and is also fast to shut down preserving all my work. It doesn't matter if it's not a free or open-source program, what does matter is that it’s stable and is comfortable to use.
Maybe trying to have one IDE to use for both C and Perl is the wrong way to go about it - resulting in a solution that's not going to handle either one language or the other as well as a dedicated IDE would?
I've decided to use the open source and cross platform Codelite IDE, with C/C++, it's just about as light-weight as I'm going to get without using a plain text editor.
It can use either VC++, GCC, G++ or it can be configured to use other compilers if required. It does more than a text editor, which is what I'll carry on using for Perl until I find something better. Unfortunately for Perl currently it only offers syntax highlighting, so no real incentive to use it here instead of some text editor or Padre.
Although still relatively new (v1.0 released July 1st 2008) Codelite is already a better IDE than Dev C++ or Code::Blocks and not as slow or bloated as Eclipse.