I am very, very close to purchasing the Canon T1i to start my photography hobby and I wanted to price out accessories. So I have a question? If I buy a Class 6 16gb Card, will it be the same quality wether bought from eBay, NewEgg or Best Buy? Obviously, I'm looking for best quailty card, highest speed, and highest capacity at the lowest price. What should I look for? Thanks for the help.