Replying to Canon EOS-M?

Has anyone looking into/used a Canon EOS-M? I would be looking mainly for ski filming and it would be my first upgrade from gopro... I have been looking a little and found that it has the same APS-C sensor as the t4i and at 244 for a new body it seems pretty decent. Other camera's I have been looking at are used t2i's and etc, but am open to suggestions.

Currently I have a Carl Zeiss t* Planar 1.7/50 lense from an old Contax Camera (I understand I would need an adapter, the EOS-M being mirrorless would make this easier?) and a 52mm Sigma mini-wide 1:2.8 F=28mm lense. I do not have a full understanding of lenses so maybe someone else would have a better understanding of how useful those are to me (they were inherited) for what I want to do. I also splurged on a glidecam hd-2000 recently so will have stabilization covered for some situations.

I would be mainly looking to film followcams as well as semi close filming outside the park in more of a big mountain skiing setting from the top of drops and etc, while occasionally using a zoom lense to film bigger lines when I can. I have a computer with an i5 processor and 4gb of ram, it runs premiere pro OK? but not excellent. I am looking for something I can teach friends how to use while still producing quality shots (I understand glidecams have a learning curve and have used one before). And am trying to keep my budget between 600 and 1000!

Any help is greatly appreciated, pretty new to ski filming and tried to follow the quide to asking what camera as close as possible.

+K for good advice, thanks!