That depends on what type of swords I suppose.
For European types, the ATrim swords are basically pure using swords, minium decorations.
For Japanese type swords, I've found that the best swords all tend to be lovingly decorated, though some so-so swords are also decorated.I have yet to see a lousy looking sword that cuts really well. If you develope an eye, you can clearly see the difference between a truely well made sword and something that hids behind cheap mountings.
If you are looking to practice on your own before taking formal training, I must warn you, Japanese cutting style is not instinctive at all. It's like golf, you really need someone to show you how it's done. It's best to do it right in the beginning than to unlearn the bad techniques later. I see some people swinging their swords around like some Highlander or Blade movie without realizing that their techniques are totally useless in the dojo.
On the other hand, if you just want to bash some cardboards in the backyard, be very careful! Even the good students get cut. One time I was in the ER and this kid came in with his ear cut off from doing you know what! Let us know what you ultimately get so we can give you some safty tips.