If it's for a HONEYMOON then by all means, use a Travel Agent.. it doesn't cost any more and you have a better chance of getting exactly what you want.
The Sandals La Toc is just another Sandals Cookie Cutter resort.. but a nice cookie cutter resort. The great part of going there is the Island of St. Lucia itself.. It's the most FEMALE FRIENDLY island in the Caribbean and it has so much to offer. Don't miss the SPA and the Special mud baths for two and the rain forest.. and the White and Black sand beaches are all a good reason to go there. But SANDALS is not the ONLY resort on the island.. here are some others you can look at
St. Lucia
http://www.uptodatestlucia.com/
http://www.jademountain.com/
http://www.marigotbeachclub.com/
http://www.chateaumygo.com/house-of-seafood.html
http://www.eastwinds.com/home.php
http://www.windjammer-landing.com/
http://www.cap-estate.com/
http://www.tikaye.com/
http://www.spiceofindiastlucia.com/
http://www.stluciaall-inclusive.com/st_lucia_weather.cfm