Replying to HD Camera help

Heey im looking to upgrade to a semi pro camcorder for making high quality ski videos. budget for cam is fairly big but basically 5 grand is too much.

Have been looking at the:
JVC  GY-HM100E
http://www.jvc.com.au/professional/professional-cameras/pro-hd-cameras/gy-hm100e
and the
Sony HXRMC50E
http://www.sony.com.au/product/hxr-mc50e

Both these are small and powerful and have had good reviews on them.
anyone has experience with using semi pro/ pro camcorders and has any advice before buying a serious camera or anything else to consider.. please comment.
or if there are any other products i should be looking at for ski filming