Should I swap from canon to nikon or just up grade for weddings?

Me and my friend are going into wedding pics. We've done a few so far and everyone happy. My mate as a nikon d7000. I have a canon 500d atm with the standard lens a 50mm and 10-24mm wich I like but is not the most useable. I don't know wether to up grade or change to nikon. I feel my camera shows its limitations in those situations and I really like my mates d7000. I thought about getting a 60d but some things i've read seem to say its not much better then what I have. Should I move to nikon. (I've always preferred nikon but some how ended up with canon) or stick with canon and up grade. I think about selling the wide angel lens alot to?

Shift to nikon. Most of the wedding photogs use nikon.

What is limiting about the Canon? Maybe the Nikon might have a bit getter performance at very high ISO, and maybe it has more autofocus points, but those are going to be small changes in performance.

Now, since your friend shoots Nikon, you might want a Nikon so you can share lenses and strobes. That would be a legitimate reason to switch. Then you could buy a couple of high end lenses and swap them between the two of you (for a while, you really want your own if you are going to pass yourself off as a pro).

Any performance issues you are seeing with your current set up are going to stem from the kit lens, not the camera body.

Why don't you swap rigs on one of your gigs? That way you'll get an idea about whether his photos are better because of the camera and lenses or because he's a better photographer. Sorry if that sounds harsh, but there's an effect.

Nikon vs Canon, it won't matter much. Upgrading will do you well, but focus on getting optically good and fast lens. The bigger reason to warrant a switch is the ability to swap gear. This will reduce costs in comparison to having two different brands.

Canon/Nikon doesn't matter - either will do. If you know what you are doing with a camera (ie able to nail an exposure under any lighting condition) you will get good results.

However, you and your mate don't have decent enough lenses for weddings, so that should be your first priority plus some off camera lighting.

You need fast lenses for low light situation where you can't use flash - the 50mm you have I take is the f1.8 or f1.4? You need to add at least the 24-70mm f2.8 and ideally the 70-200mm. I use those plus an 85mm f1.8.

A couple of off camera speedlights are good for when you can use flash (don't, whatever you do, use the pop-up flash) - either mount them on camera & bounce off a neutral surface or use off camera with a couple of modifiers.