Most any of the utility grade machetes, avoiding the $8 discount store models, are good enough to do anything you need them to do. A lot of them are coming out of South America where they know their machetes. You can find good ones at any feed store, farm supply, or shop catering to landscapers.
The ones you see at the discount stores, and big box hardware stores are inferior if your not paying $20 to $25. I've noticed that the good quality ones don't often come with a sheath. On discount store models the sheath seems to be something of an apology for the overall quality.
I still am hacking away with a $12 in '79' dollars Tramontina (24" LOA - wood handles utility grade made in Brazil) and a 36" USGI machete I got at a yard sale for $2. I've had both for better than twenty years. Pinged and abused, with a bit of rust, they just keep working.
Both are utility, nothing special, grade tools made of indifferent mild tool-steel, enough carbon to spark well if you hit a rock, but little enough that they tend to blunt their edge after a few minutes heavy use. Anyone with experience knows to carry a file if your going to be using a machete a lot and to smooth the edge frequently to keep it cutting smoothly. A file is a lot faster than a stone.
Cold Steel, a marketer of edged tools made in Asia that steeps itself in macho cache and heavily caters to wannabe types, does market a line of good, and relatively inexpensive, machetes. I have fiends who have bought them and was favorably impressed by their balance and quality. Nothing wrong with Cold Steel as such. They do sell some good products at reasonable prices but you have to dig through the hype and posturing.
http://www.coldsteel.com/latinmachetes.html