Hey I'm playing on a Mac but the only way I found to get Razor working (so that you can actually play UOSA) was to install WinXP on it. Just get hold of a copy legally and install it with bootcamp. Easy peasy.
I did same thing, Bootcamped WinXP onto it.. super easy- get a USB keyboard for PC and same for mouse unless u like the mac keyboard n mouse.
Then your good to go.
UO Crossover for Intel Mac's works flawless. Here is the deal you will need to use UORice to decrypt your client. As for Razor well because of the .net frameworking you will not be able to use it via Crossover.
Also, figure out which graphic cards you have on your mac (I have an 08 iMAC with a Radeon HD blah blah..
Then download the driver for that and install it into your windows folders- although the graphics card isn't detected on windows, you can still install the driver and it will help boost performance- just make sure you download the right graphics driver.. otherwise it could get ugly!