re: Above ground pool, best options?

First of all, pay the extra money to buy an above ground pool that can handle a salt water system. Will literally save you thousands of dollars in chemicals over the life of the pool. I built pools for 6 years. Many are crap. Sharkline made a very nice high end model several years ago that could handle saltwater, it was an upgraded version of their Morada series. Last one I built though was spring of 2012. Also, if you opt for a true above ground over a plastic one like was suggested earlier. Pay for pro installation. It really is worth it. The average pool sold is a 24', installation should be around $800. If its more they are ripping you off, unless you have a steep yard and they charge for extra grading. A 18x33 oval will be around $1500. Everything else should be less. If you just want a temporary stop gap, those plastic ones really are surprisingly good pools. Also, the main reason I advise above ground to people is if you don't want it, pay someone $100 and its gone. Throw down some seed, and you have grass again. In ground is a lot more work to make it disappear.