Guru, I wouldn't worry too much about brand name if you like the styling... I mean, it'* a piece of metal.
You should definitely consider stainless steel tips, as opposed to chrome. Stainless will cost you more, but they will not rust and will last much longer. Your pipe size is most like likely 2.25" (someone correct me if I'm wrong), and you may need to have a muffler shop cut off your stock tips and weld on the new ones. It shouldn't cost you much for the labor, depending on the shop... call around the check prices. Happy shopping!
Current GMs: '95 Chevy Suburban C2500, '69 Pontiac Executive
Former GMs: '83 Buick Park Ave, '73 Buick Electra, '92 Chevy Caprice 9C1, '98 Pontiac Bonneville SLE, '99 Olds Aurora, '00 Buick LeSabre