£5-6k for a Sports 600 will be getting into "new" territory, and as someone who has purchased a new bike before, I'd advised otherwise, especially if you want to watch the pennies...Also, you'll need to budget for a decent lid, leathers, boots etc...
I'm either going to have a good car OR a good bike.
I want the bike to be no older than 2-3 years old. I was looking at the 2007 Hornet 600, as i like it over the other naked 600's. I don't think getting a "Sports" bike, as in an R6 or something would be wise as my first bike, i want to learn and build up to them, and i think anything above 600cc will rip my arms off. Maybe i'm wrong, i don't know that much about bikes so i'm open to suggestions...