I agree...it depends on your usage.
Are you going to carry this around?
Will you be using it routinely (hrs of light/mo)?
Will you be using it away from AC power?...for an extended period of time?
Just how far is "far" for light throw?
The light I use for this is the UK 4AA AS2.
It'll give about 5 hrs on a load of batteries.
UK 4AA AS2 w/switch about $20 delivered
Since it is AA based, I have a variety of options for power.
Lithiums for long shelf life for emergencies or cold weather dependability.
Alkalines for decent shelf life and low cost operation.
NiMH (Nickel Metal Hydride) for REALLY low cost at high usage.
THe UK itself is compact (easy to slide in and out of the pocket) so if it is used for a hike or a long walk, easy to carry (not an issue if you are always in your back yard, etc.). The focus is preset to a nice tight spot and will "throw" about 150 feet. I usually use it in conjunction with a compact, long lasting LED that puts out a nice "flood" type beam (PT Attitude, 4AAA or Infinity Ultra, 1AA). The Ultra makes a nice companion for extended use as it can take AAs from the UK after they are "dead" and continue to produce light in the LED.
Although, the UK won't throw nearly as far as some of the other lights others have mentioned...it all depends on your usage.
A good light to experiment with that doesn't cost much to try out is the Brinkmann LX ($20 from Walmart). It uses expensive 123a lithiums ($10 a pair at Walmart) and runs about an hour, so... pricey to use routinely but it is quite bright and will "throw" quite decently.