Hey numptyj,
Welcome to the forum! There's a ton of great info here...some of our trusted collectors accept paypal, some accept Visa and Mastercard.
As for the Omega, it's a great watch..I own a gen "Bond style" SMP (not the special edition you're after). If you use the "Search" feature at the top right there's a ton of info, reviews, and common mistakes- listen to what the experts say and you'll make the right decision...
Best of luck!
PS- isn't it "Guise"