Based on ptdebate's assessment of the new one being garbage, then I would also highly recommend using the SNES Classic to play the original. It's a well-done product with tons of triple-A games on it. I was lucky to find mine at Gamestop, but even if you go on ebay, the prices are still reasonable enough to make it worth it.
Some other classic RPGs are on there too, including Final Fantasy VI (aka, FF III), Earthbound, and Super Mario RPG. While Secret of Mana is known to be very good, you might even consider Final Fantasy VI over that. Many people consider it the best Final Fantasy, and some even consider it the best RPG ever.
General and high profile video game topics.