It's going to depend on what you want.
Do you want stuff for display?
Do you want stuff you could train with or use?
And if so, do you want something used in iado training without a live edge, or something with a live edge?
The Paul Chen blades are supposed to be good quality. But not cheap. If you only wanted something for display, then it might be more than you want to spend.
Anything with a live edge, anything forged in traditional methods is going to be very expensive.
Anything with "real" fittings made of shark or ray skin instead of plastic, silk instead of nylon, etc, is going to cost more.
If you got a sword of the type useable for iado, most blades used in iado training are not very sharp, and are not going to hold up if you start cutting things or clashing them against other blades. (My United Cutlery replica Legolas White Knives are sharper than either of my iado katana! I was actually surprised replicas would be thaaat pointy and sharp.

)
The purpose of the iado training swords is to be used for practicing drawing the blade, and for one's kata, not sparring or cutting bamboo or mats or whatever.
So they are less expensive, depending on the fittings. Mine have the same fittings you'd find on a live blade, and run about $500. And the blade is shaped exactly like a live katana blade, it's just the metal and the forging is not the same.
And the nice thing about most training swords is you don't have to worry about cutting yourself with a live blade, or freak about the risk of bending an expensive live blade while you learn. Or destroying the edge because of a bad cut. You can also touch the metal and not freak freely over that, too.
(It is still very easy to bend a good quality blade or crack a scabard if you do it wrong when drawing the blade.)
Do be careful of the overly cheap iado blades because they probably aren't put together very well, and if you are using them for more than display, you do not want them breaking or falling apart because of poor quality.
If you want to bash some weapons together, get shinai or bokken.
Bu Jin has these really great suede covered shinai.... Much fun--long as you keep some safety in mind!
In addition to what Todd Shogun mentioned, there are also online shops like Bu Jin, Bugei, and The Sword Store. Others and myself at the dojo have ordered from these places and their quality is good.
If you want great wooden weapons, like bokken--go to Bob's Bokken. My jo from them is great!
The Mithril Armoury has great prices on a lot of replica and movie replica weapons.
Have fun shopping, whatever it is you are looking for!