ericpop27

I currently have a 20 gallon tank, and all of my plants are getting too big. I am also tired of not being able to have a large school of fish. I am looking to buy a new tank, either acrylic or glass, and I want the base price to be under 300 (not including tax).

I found a 75 gallon glass tank at Petsmart for under 300, and I've also found an acrylic 50 gallon for under 300 at Petco. Which should I go with? I've never had anything but cheapo wal-mart tanks, but I've never had one leak...just lots of scratches. The clarity and lightness of the acrylic sounds nice, but there's a 25 gallon difference due to price.

Can you tell me some of the pros and cons of acrylic and glass?
Also, what are some other online retailers that sell large aquariums?