Spring for TextMate, it's not free but it really is worth it.
Starts fast as can be.

On Mar 14, 2007, at 1:26 PM, Sharon Phillips wrote:

> Up till now I've been using Scite on Windows and Smultron on OS X  
> for Ruby development. I've also been using Netbeans for about 12  
> months for Java, but  it looks like it may be time for a change as  
> Netbeans is now adding some pretty decent Ruby support.
>
> Here's a short video showing some of the things that got me  
> interested:
> http://www.netbeans.org/download/flash/jruby_editing/ 
> jruby_editing.html
>
> Only downside so far is that Netbeans is no lightweight. Scite,  
> though lacking a few things, has a brilliant startup time and as  
> such is very practical for quick scripts etc. Netbeans takes nearly  
> a minute to load on my work machine (old and under-specced) which  
> is fine for a project I'll spend the next few hours on, but not  
> much fun for a quick job.
>
> How are other people finding Netbeans as a Ruby IDE?
>
> Cheers,
> Dave
>