It's worth noting Charlotte has direct flights to Nassau. Not that they are any cheaper. (Those airlines pick up on things fairly quickly, don't they?) $714 R/T from Charlotte but only $616 R/T from Boston. Either way you are looking at $1000 for a weekend. If you go on Hotels.com the Baha Mar is on sale for $188/nt. This is an 5-star excellent resort at an unbelievable price. Plus they have a casino and sports book if you want to try and win your trip cost back. If you want to go cheap there is a hostel on the beach called Baha Sea Backpackers. On Hotels.com it's going for $53/nt.
You can get around by cab for $25-30 a ride, or you can try the Jitney buses. These are privately-owned buses that run set routes around the island. $1.25 a ride but they have weird run times, so be prepared to cab it if you get stuck. The #10B jitney starts downtown at George and Duke Sts and will get you close to the stadium at Thompson and Bahamas Games Blvd.
As much as I would love to go, I doubt I can swing it. The rest of you have a blast. If you do stay at Baha Mar, or the Melia next door, there is a place called The Daiquiri Shack right off the traffic circle on West Bay. Real fruit daiquiris and smoothies made on the spot. Highly recommend it.