Simon,
If you are going to start your adventure in 1:32 Scale then I second the recommendations for the Roden Fokker DRI, no end of potential colour schemes and minimal rigging. Should you decide to jump right into the rigging requirement then, as Chris and Greg pointed out, the Wingnut Wings Sopwith Pup is a fairly simple Build and the Kit is spectacular in engineering and ease of assembly.
To help in your choice take a good look at some of the Build Logs here if you have'nt already, that will provide a lot of considerations in the scale and aircraft type you want to model. Last, as Greg has pointed out, all the help and encouragement you'll ever need is here for the asking.
Good luck with your first, I look forward to following your progress and, above all else, ENJOY!
Cheers,
Lance
