Hi all,
I am looking for a web conferencing and remote support solution that would work on both PC and Mac. Actually I’m in need of a tool that can present my computer screen remotely. Does this solution exist? Please help.

I think you should opt for GoMeetNow which is available from http://www.gomeetnow.com/. It is a multi-functional web conferencing for both PC & Mac. Its "Universal Attendance" technology ensures that everyone can join the meeting with no download whatsoever, supporting attendees on Windows, Mac, Linux, Unix, or iPhone. A class product and you can also use it for remote PC access. Even Don Cameron, President and CEO, ConferTel quoted it as Sleek and Simple. When I first used it I got a free trial. But not after using it for a year now I am confident to recommend it to you. Try it, it won’t disappoint you!