I have used 3 companies for weapons, and I am pleased with all of them. Blitz - good quality weapons, but delivery takes a while. Playwell - only bought a bokken from them, but it was a decent price and turned up within a week. Nine Circles - good quality swords, good customer service.
http://www.iconmartialarts.com/ is the one ive been using lately.v.good! sticks/ swords mostly Dave ... also mats n stuff ,pads etc etc
Dunno if you mean JMA or CMA weapons. If it's chinese - Gwangung are pretty good. They have a range of combat steel swords, tiger forks, kwan daos etc etc www.gwangung.co.uk Service has always been good from them.