In reply to TomAlford: What ropes do your climbing partners have?
If you're skint then buying super skinny triple-rated ropes is probably a luxury.
If you're going to climb indoors or dog sport routes more than once in a blue moon, 9.4mm or thicker single is the sensible option. However, if those you normally climb with already have ropes you can use much of the time, a 60+metre skinny single might work out great as you can save it just for the longest and hardest pitches outdoors.
Equally, if you're going to climb trad you'll want a reasonably matched pair so either that is a major investment for two ropes or might you'll want to go one each with a partner.
Whatever other ropes I have, these days I ALWAYS have a short (30-40m) cheap single that I use at the wall and whenever possible outdoors so that my more expensive ropes are kept for when they are actually needed.