Ozone does multiband compression, excitation, panning/ stereo separation (Spectron is REALLY good at this, which is another great iZotope product), as well as your standard reverb and limiting features which opperate over the entire fequency domain. What the term "multiband" means is that it acts on specific frequency bands, as oppossed to the entire sound. So for example you could apply compression on the bass and some of the midrange whilst leaving your highs relatively unmodified to reduce the pumping effect on the high end whilst still keeping your bass (where the magority of the energy in your track sits) in check. Very powerful, but a little tough to get used to compared to your stock standard mastering techniques.

In this case what I'm saying could work well is to use Ozone's multiband stereo separtion feature to widen the stereo on only the high end of the sound, whilst reducing the bass and mid so that it stays nice and centered (to prevent needles skipping and off center kick drums). Another thing you can do is to add a small delay (no more than 4ms) to the high end, which makes the hats really sparkle.

The exciter is another feature which I LOVE about this plugin.