I am currently Nikon, so i have a Nikon sb900 only, i am wanting to get into off camera flash, so i have got a couple of 603 triggers. My question is, i still have a Canon 430 speedlight, and was going to sell it, but would this be a silly move, can i use Nikon and Canon obviously in manual mode together or would it be better to stick with Nikons? It is really well built, better than cheaper flashes, but i am not sure, with being new to this part of photography.