Tique,
your criteria for a machete were:
-<$50,
- tough,
- good handle,
- fairly decent edge holding,
- 12"-16" blade,
- reasonable weight
- Suitable for grasses, small limbs, and the occasional piece of hardwood
- and it should be easy to use without getting tired.
These are pretty much the things I look for in a machete. I've gone through about 6 machetes in the last year looking for one I really like. I generally use a machete to clear trails and paths into and out of wetlands. Most of the vegetation I cut is blackberry, salmonberry and ocasionally vine maple, so it's a bit more woody than what you indicated. Most of my work is in suburban to rural areas, so it's not uncommon to hit a piece of rebar or fence post when clearing vegetation. I'd expect you'll run into the same sort of thing doing landscaping.
Bye the way, I agree with Cliff that it's not necessary to sharpen out every little nick and ding. It doesn't seem to make much difference one way or the other, unless the blade is really hacked up.
I have to disagree strongly with Cliff on the Barteaux machetes. I have had three of them in the last year, and found them to be less than perfect. More specifically: The heavy duty type has a large square grip that is difficult to hold for those of us with smaller hands. For those folks, this blocky grip may allow the machete to twist on impact, mashing your knuckles against the knuckle guard. Too bad, because I think that the knuckle guard is a good idea. I like the bright orange color of the grips as well, it's easy to find when you leave it on the ground. The blades on these machetes are indeed heavy duty, so they would be very tiring to us for cutting the grass or light woody vegetation you specified. It does hold an edge well, and is definitely less than $50, but the grip and weight are weaknesses. Available in a variety of sizes.
The lighter weight Barteaux machetes have a very good grip shape (for my hands at least). It has sort of a birdshead shaped end that holds very well. The raised crosshatching is a real blister raiser, but it can could be easily filed or sanded smooth. The big drawback with these blades is ... well, the blades. The steel on the two I had was very soft, but that may not be it. I just couldn't get the things to chop through blackberries effectively. The blade seems to be too flexible. I can't quantify it, but the relative relative lack stiffness seems to be the problem. These are in the $5 range here in the NW. not too tough, but with a decent handle. Poor edge holding ability, but they are
The Ontario machetes also didn't work for me. The blades on these are a bit too hard to work where you may hit a piece of metal or cement. I took a big chip out of my Ontario when I clipped a fence post. Since I hit fence posts with alarming regularity, that put them out of the running for me. I also find the Ontario machetes to be a bit too heavy for lighter vegetation and long work days. Price is about $15-20. Tough but heavy, and the handles have a reputation for failing. Available in 12" and 18", I believe.
I'm sure others will disagree (strongly!

), but I recommend the Tramontina. Costs about $5 mailorder. The handle is rough, but it's wood so you can sand it to a better shape and drill a hole for a wrist thong. Edge retention is pretty decent. The blade is lightweight(I use mine all day with little fatigue), but stiff enough to cut well. Available in a variety of lengths.
If you decide on one of the Coldsteel machetes, please post a review.
Hope it helps,
Patrick