What worries me more about Canon currently is their apparent shift to charging more for equipment,
I shifted from the dark side in 2009 ... but I still had my Nikon D80 and a 4 lenses till last month.
What people don't realize is that Nikkor glass costs a lot more than the equivalent Canon glass e.g. Nikkor 24-70 f/2.8 = $1886 vs Canon EF 24-70 f/2.8 = $1400.
Canon 17-55 f/2.8 IS costs $1060 vs Nikon's 17-55 f/2.8 (NO VR/IS) costs $1400
So whatever one thinks they saved / lost in buying camera or lenses will soon realize that "Dark side" or the "Light side" they both work out the same (in terms of price). I've always liked Nikon & Canon cameras and lenses ... if I had enough money I would buy D800e (plus some good FX glass) and still use my 5D MK III as well as the D800e.
5D MK III, 16-35/2.8 L II, 24-70/2.8 VC, 24-105/4 L IS, 70-200/2.8 L IS II, 100/2.8 L IS, 40/2.8, 50/1.4, 85/1.8, 150-500 OS, 600EX-RTx2, ST-E3-RT, Rokinon 24/3.5 T-S, D7100+18-300 VR, YN568EX, 055CXPRO4+468MGRC2, 190CXPRO4+322RC2, Gorillapod Focus+496RC2, CamRanger, B+W filters, Konova K3/31.5 etc