The Greenworks 21212 4 Amp 13 Inch Corded String Trimmer is one of the cheapest weed eaters on the market, but the price belies the performance. This performs way above the price and is perfect for someone with a smaller year wanting a lightweight, budget electric trimmer that will do a great job.
This isn't far off the power of a commercial weed eater, has fantastic cutting power, is so smooth to use, can be easily converted into anyone of 11 other handy yard tools and best of all it comes at a great price.
The Makita XRU02Z 18V LXT String Trimmer has power, a great battery system and a wonderful bump feed head. If you are looking for a battery powered string trimmer this is definitely worth considering. Read my full review for more details.
The Black and Decker GH900 Trimmer is a wonderful choice if you are on a budget but still want something that does an almost flawless job and has a lot of power. For small to moderate yards this thing will eat up weeds like they weren't there.
The Hitachi CG23ECPSL is a wonderful gas powered trimmer at a really good price. What sets it apart from most other weed eaters is it is a delight to use - so comfortable and it packs a lot of power. Plus you get a fantastic seven year warranty!
The Toro Corded String Trimmer 51480 has a huge amount of power is really well made and doubles up as a fantastic edger. Just a shame it is let down slightly by the auto-feed system. Read my full review for a warts and all opinion.