Or if anyone can recommend a better 1 for £600 or less please let me know.
It really depends on what you're going to do. If you are going to have a whole bunch of games, I suggest the N1727, as it has double the hard drive space as the N1561. If you're going to have fewer, higher quality games, I suggest the N1561, which has 2GB of dedicated video memory, instead of the N1727, which only has 1GB of graphics memory.
Overall, I suggest the N1561. I don't think you'll end up having 1TB of games .