There aren't many online stores better than Wildwoods IMO,
However with plecos you would be better ringing them and asking how long they have been instock and what they have been feeding on etc.
Without seeing the actual fish you really want to make sure they aren't malnourished or could potentially have internal parasites if they are wild caught.
Ok, thanks for all the advice. Been looking at the prices and might need to save up, they'll definately be the last thing I put in the tank so it'll be mature, Are there any different plecs that are easy to care for and look good?
The L270's look pretty good although they seem a lot more fragile than the likes of L066. The L260's are really good looking but a guy in NZ who breeds them has said he once had a whitespot outbreak and its lethal to them so I was slightly put off and haven't ever bought one.