George, Kim, David, Dave, Joseph, Mark, Eddy, Simon, Anthony, Drake, Rudolph... Well! out of all Simon, Dave, David and George(Bush) looks cool to me...
Nah screw that dude, stay who you are! Why should you change just so someone can pronounce your "name" which isn't really yours b/c its fake. If you absolutely have to get a pronouncable name, go for something from a comic book. Like Venom, or Mephisto, something dangerous!
Dave, Bob or John.....All classics. But frankly Id want your name....keep your originality, if you change it you might miss it.
I know when I was at college the Chinese students all had English names, they weren't official but for other people's benefit. On their exam papers and records their names were still their Chinese names but in classes Teachers and Students would all use their English names.