Hi, I live in Luxor quite close the the Iberotel (previously novotel). taxi to Karnak would be about 10LE or a bus 25p
50 - 60LE to/from airport to East Bank (Iberotel is on East Bank) but if you are just picking up one at the airport note that normally in any country airport taxis are more expensive so you could be asked more. Haggle but accept 60-70LE if they wont budge. Some companies who you can arrange transport from will be more expensive than that.
Can get you a driver for valley of kings etc if you need one, I advise not to use tour companies who will heard you like sheep, easy to do it all yourself.
can I recommend a felucca? ok ok but it IS the only one fully owned by a Brit woman and a member here, think shes been a bit busy to post for a bit though as we both have.
