I'm 17, I am starting up my own business and was wondering about push mowers. I recently just bought a Snapper 48 in. walk behind and I really like it. I have an old John Deere push mower, like a 14SB or something, with a 4.5 horse engine. I was wondering if there are any good cheaper push mowers with self propel and blade clutch for less than $600, with a bigger engine like 6 or 6.5. 4.5 hp isn't always enough. Any help would be great even about other stuff about starting a business. Thanks.