I have a page of job opportunities where you'll find a lot of restaurants listed (including a link to Divine Dining and Burroughs & Chapin.) You should not have problems finding a job as a waitress.http://www.funbeaches.com/jobs.html
You might consider getting a job before you sign a rental agreement. The reason is the Grand Strand is a actually 60 miles, from Little River down south to Pawleys Island. You would not want to find a rental in the City of North Myrtle Beach, then realize you'll have to drive 30 miles each way to get to work.
Here are some suggestions for home rentals and/or apartment rentals. http://www.rentals.com/South-Carolina/Myrtle-Beach/http://www.thesunnews.com/realestate/http://www.myrtlewoodvillas.com/http://www.beachpropertymanagement.net/
Here's the 2010 "report card" for all the schools in Horry County. http://www.horrycountyschools.net/cms/O ... d=12073890
If you decide to live in Murrells Inlet or further South, the the schools will be in Georgetown County instead of Horry County, and you can google the appropriate information.
Hope this helps!