If your really into a sport name them after the captains of the teams. As I'm into hockey you can name like the following:
Defensive Planet: Luongo (Roberto Luongo, Captain AND Goalie for the Vancouver Canucks)
Planet near a sun: Lecavalier (Vincent Lecavalier, Captain for the Tampa Bay Lightning)
Arid Planet: Doan (Shane Doan, Captain for the Phoenix Coyotes)
Capital Planet: Ovechkin (Alexander Ovechkin, Captain of the Washington Capitals)
Etc etc etc...
I'm into conspiracy theories, so I like to name at least one of my planets Niburu... after the giant thing thats going to kill us all (aka Planet X)
Care of: http://watchout4snakes.com/creativitytools/RandomWord/RandomWordPlus.aspx
Name them after current names of moons of the planets in our very own solar system: http://www.indwes.edu/Faculty/bcupp/solarsys/Names.htm
Name one after a Google Whack: http://www.googlewhack.com/tally.pl
But your looking for a desert planet names, so I got a few:
But to be honest, nothing beats my all time favourite name for a planet... "My *insert body part*"
When you see a fleet arrive at "My Wang" it makes me laugh, especially if My Wang is getting raided by Pirates, hahahahahahahaha!