The Syma X1 is a great starting quad and is available from the battery superstore - fulfilled by Amazon: http://battery-superstore.com/Syma-X1-4-Channel-2.4G-RC/M/B00906PKQ4.htm If you want perhaps a slight step up and a small vendor who can answer your questions and provide some parts and repair support, check with Romeo at MassiveRC: http://www.massiverc.com/PrestaShop/en/ He will suggest one of his models (about $50) to fit your intended flying style!
If you don't mind waiting a couple weeks, the Hubsan Quads X4 from China with free shipping is at the lowest price ever! $38.99 includes shipping http://www.Banggood.com/Wholesale-H107-Hubsan-X4-2_4ghz-4ch-Rc-Remote-Control-Quadcopter-p-59211.html
Breaking News - $5 off all (already heavily discounted) Quads at MassiveRC (I'm gonna buy a couple more myself)...... Note - it was a Presidents Day Sale but they indicated it will be extended. See: http://www.massiverc.com/PrestaShop/en/6-micro-quad-copters
Great mini-tool kit for fixing and tuning your R/C stuff for 9.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16899261022&cm_mmc=AFC-dealnews-_-NA-_-NA-_-99-261-022
