Best get an insurance quote first unless you fancy a bit of 'you'll never take me alive officer' action!!
I have had bikes since a kid(C90 for the fields) and have ridden legally since 16,i'm 31 now and currently have 2 bikes and do many miles per year,holidays and off roading etc.
If you want any advice UKM,send me a PM when i have done the obligatory 20posts?I have had all kinds of bikes ranging right from an old CT70(monkey bike) to an Hayabusa with lots of sports bikes/tourers/off road/enduro bikes in between.
In my opinion,the best buy at the minute is the ZX6-R G1/G2/J1....lot of bike for the money if you want a comfortable sports type bike as a beginner.How heavy/tall are you? This will make a big difference to enjoying the ride and not enjoying it at all.