I've been looking for a new Library / Photo Editing software, iPhoto isn't really cutting it any more. I've been using both Aperture and Lightroom a bit now (trial licenses) and I noticed a big difference in the noise reduction capabilities.

Lightroom does a really amazing job with noise reduction on some of my long exposure northern light photos. Apertures noise reduction on the other hand barely makes a difference. This might be due to how I use Aperture and Lightroom, but I've seen reviews that praise Lightrooms noise reduction while almost bashing Apertures (lack of).

I like how Aperture creates "Libraries" and organize the photos. The "do what you want at any time" aspect of Aperture is also something I prefer, but it's extremely slow on my computer which is quite fast (MacBook Pro 15" Early 2011, i7 4GB Ram).

I guess my question would be: Is there any other really good noise reduction plug-ins for Aperture? Can I get noise reduction that even get close to the quality of Lightrooms in Aperture?