This is a really good site and has everything you would need. www.prosocceruk.co.uk looks great. I came across the site and was looking for some new football kit but came away for allsorts of other stuff as well. I got some training tops and socks. I even ordered a captains armband for my team.
If you run a team as well you can also get loads of training equipment as well. This is a really great site to look at and they didn't disappoint with their service either.