Your going to have a hard time finding a mail order place where you don't need a credit card. A lot of places do except money orders while a small number accept cheques.

You might try www.cdw.com. They're always sending me a flyer.

There's also www.NewEgg.com and www.tigerdirect.com. These two accept money orders but the first one accepts cheques as well.

As for price, this card will probably cost around $200US plus shipping.