In reply to mick shocks:
....and in answer to your question, yes, if you're new to road riding it would be worth getting a bike with a triple chainset because there are some steep hills around Bowland and the Ribble Valley. (Jeffrey Hill, Birdy Brow, Waddington Fell, Trough of Bowland, Cross of Greet, Nick of Pendle, Whalley Nab)
If you're looking for good advice, Richard at The Green Jersey in Clitheroe is an all-round Good Bloke.
...and yes, the Triban 3 from Decathlon is a great bike though the wheels are poor. Triban 5 is £499.99 and a little better in weight and spec but it looks a bit odd.