I have had my heart set on getting the Canon 30D for some time now. I have saved up the money and am ready to by. Now I see that Canon may be coming out with the 40D in late Sept. I am going on a trip to Hawaii in Sept. and wanted to bring a good camera. Are the projected upgrades from the 30D to the 40D worth waiting for and not having a SLR for the HI trip? I am very new to photography so you help is appreciated.