Do they sell posters for your wall and tshirts

I actually work here. We do have posters, but we don't sell t-shirts. We have a limited selection of posters though. They are located in the back of the shop near the graphic novels.

I think you can still order a t-shirt from the Diamond catalog, but Troy doesn't carry them in stock.

Yes

Yes they have posters and u can probably talk them out of some of the ones on the wall for the right price

I don't think so, I can't remember seeing any. I'd suggest somewhere like five below for the posters, maybe thinkgeek.com for shirts.