Get 'em here...

http://www.store.cakewalk.com/default.asp?cat=47

The Concrete Limiter, how is it? 
(how bad can it be at 20$...?) 

The Concrete Limiter is actually very good.  I would rank it second to the CA2A as far as pro channel  add-on modules.  I use it frequently. 

I never leave home without it!

I had to get the Z3ta pack, $5 is pretty cheap.  Also, lucky I checked, I already have the limiter, almost got it again.
 
They really need to only show you what you NEED to purchase.  

I would recommend the Overloud VKFX bundle. Very nice sounding FX.

I'm a pretty big fan of the Concrete Limiter. Frankly, I think they should roll it in to the Producer package. I lack the experience and/or golden ears to be able to provide in depth comparisons of limiters, but CL is quite good, I like its sound and simplicity. In particular, the bass option which does a soft compress on the bass is nice because it can with one click add more bass to a limited mix.