There are dozens of sites that sell machetes, many of them sell swords too. Baryonyx Knife Company is run by forum member FortyTwoBlades and sells a whole host of machetes, and you can get his special grade service to get them shipped screaming sharp as well. BladeHQ and Knifecenter both sell Condor and Cold Steel stuff, as well as MyParang products. Heck, you can get a lot of that stuff fairly cheap(including the Cold Steel Gladius and Scottish Dirk) on XXXXX. XXXXX sells pretty much every machete you can think of as well. And considering the low prices some of those items sell for to begin with, plus the hassle and cost of shipping them, you're unlikely to get a lot of them much cheaper even if someone was selling them here used. I mean, you can get a Cold Steel gladius machete new for $30 with free shipping, it's unlikely you're gonna find a much better deal here even if one pops up.
As for kukris, you may have some turn up in the exchange or on the Himilayan Imports forums, if not you can always order directly through HI or XXXXX.
Sorry, I forgot this site has the absolute dumbest linking rules of any site in the entire country, so PM me if you want the links the mods deleted. Heaven forbid we try to help fellow enthusiasts and all that.