[misfit41]

I would advise ,if your just going to air tires,,blow off your mower,and an occassional painting/sanding job,a single stage 5 or 6 hp unit ,usually 60 to 80 gal tank will do,,300 bucks or less at sams club or tool stores.
If you invision doing more work,painting,air tools,{grinders,sanders,inpact wrench,sandblasting,etc} I strongly recommend a two stage unit,about twice the cost,but they recover much faster,provide twice the volume of air ,and make more pressure,, 150-175 psi versus 100-125.
A good idea is to ck the ait cfm and pressure requirments of tools you may want to aquire in the future,and compare to compressor ratings.
A good compressor is like a pickup,once you have one ,youll never be with out one,, Tim