The lounge is Star Alliance, so I doubt that you can buy entry.
However, it is not a particularly nice lounge, my last use was a week ago and the food court area does have decent places to kill some time.
Alternatively, if you can be arsed, you could go to either the Novotel or Iberotel, both of which are very close to the airport (you can see the control tower from them) and relax there for an hour or two.
I hope you have a good time in Sharm.
Last edited by Final 3 Greens; 31st Jul 2009 at 06:48.