buying a tv on-line and having it mailed to you

what do you guys think, is it a good idea. never bought anything on-line before.sams club has a sharp aquos 1299.00

but you can only get by mail none of the stores near my house has it.

or should i get a toshiba 42 in. regza lcd for 1299.00.

this will be my first hdtv so any help would be great.

thanks.