Palm push email for mac

[budaapple]

I have a macbook and a Treo 650. I want to use a push email service to receive my emails and email alerts but the one offered thru my carrier (cingular) and palm Express mail and Versamail does not offer a mac downloadable option. Does anyone know of one that does or possibly a work around it. This is getting frustrating I eed help.
Thanks BA