My wife and I visited Siem Reap/Angkor Wat and Phuket for 14 days.
We stayed in the Surin in Phuket for 8 days. The Surin shares the beach with only one other hotel, the Amanpuri, which is beautiful, but much more expensive.
We went for drinks at the Amanpuri and the staff kindly showed us the rooms, which are larger and more beautiful than that of the Surin, but of course, at a price!
We made one mistake, and that was to take a 2 day break to the Phi Phi Island Beach Resort, which presents the worst value for money that have so far found. It is a MUCH better idea to take a day trip to the Phi Phi islands (which are beautiful)
We also went on a day trip to the Similan Islands for a snorkeling trip. This is beautiful and one of the 10 best diving sites in the world. The hotel arranged the trip (including 1.5 hour transport with a small bus to Khao Lak, from where you leave to visit the islands). We booked accommodation on the Island, but fortunately did not check out of the Surin for that day, since the accommodation on the island not so great, and we therefore changed our plan and returned the same day. If you want to stay longer, rather go on a diving trip - wikipedia / wikitravel have great references to companies. We used http://www.seastarsite.com/ . We were very satisfied, and recommend them.
Do not book the day-trips book ahead - wait for a day where you have guaranteed good weather
I had a suit and 2 shirts made at Manhatten Tailor in Phuket City for me. I am extremely pleased with the suit and the shirts. Whilst I am sure that you will be able to find cheaper tailors, I will definitely buy another suit from them when we the Surin again and know that I will not shop around for an alternative. They told us that whilst they can make a suit in 24 hours, it is better to allow more time as the construction of the jacket is improved if one has more time. I have read a few reviews about them, and know that others share my opinion. You can contact them at manhattanphuket@yahoo.com or ph 355-741; 355-742
We visited Siem Reap first, staying for 3 nights. I recommend combining Phuket with a trip to Angkor Wat in this order - it is the perfect combination. We stayed in the Heritage Suites Hotel (excellent - see my review for travel tips). If you go, consider very strongly using the services of our driver / guide "Phirun" whom you can contact at phirun_david@yahoo.com. We paid him $100 per day, including tips, which is excellent value.