I went to Bangkok and Phuket in November. Patpong market is a must in Bangkok but dont get ripped off as they pounce on tourists lol! Use the skytrain to get about it is really cheap and clean and easy to use. When you get to Phuket your resort will have details of trips you can go on and the boat trips and canoeing are just fantastic. You can try shopping around but most are priced the same. I stayed at the Katathani resort which is just minutes away from your resort. You must try Mom Tri's Kitchen for a meal it is without a doubt the most superb place I have ever eaten, very secluded and when you book they will arrange transport to pick you up. I am considering getting married there, it is so good!
http://www.villaroyalephuket.com/dining.html
There is so much to do you will have a fantastic time, make sure to relax too! Im sooo jealous lol!