You can try the free OMF Tool:
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http://www.digidesign.com/download/omf.html
You can also try the standalone version of DigiTranslator 1.0 as a 15 day demo:
http://www.digidesign.com/download/digitrans.html
DigiTranslator compatibility info:
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http://www.digidesign.com/compato/dtmac.html
There is only one DigiTranslator package available for purchase, which includes both DigiTranslator 2.0 and v1.0.1. Currently, v2.0 capability (as an optional purchase) is not built into Pro Tools LE for Mac, so you would have to use the included v1.0.