Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I am looking at getting my first snow blower - for a 100 ft gravel driveway that inclines (and curves) at approx 30 degree.  I am looking at either Toro (305cc) or Troy-Bilt (357cc) as both are costing me C$2,100.  I live in Guelph Ontario where we get a fair amount of snow during the year.  I have looked at the reviews and both these brands seem quite reputable - the Toro will be purchased through a dealer while Troy-Bilt will be bought at a box store.  My concerns are (1) ability to remove snow on an icy incline without slipping, (2) ease of use/handling (as my wife will also be using it) (3) reliability and (4) after sales service.  I am quite confused and look forward to some advice from the experts.

Product websites

http://www.toro.com/intl/ca_en/home/snowthrowers/gastwostage/1028oxe.html
http://www.troybilt.ca/troybilt/product.asp?id=2699&type=6

Thanks.