i am a homeowner considering taking over responsibility for my lawn care. i currently use a contractor who does a good job but is extremely expensive. i can save some money and do some outdoor work that i'm looking forward to doing again after several years of using a service. i have about 10,000 square feet to mow and have many trees (walnuts, dogwoods, oaks) so leaf collection is an issue. i don't want to do this with a consumer machine because 21" will take too long and the consumers won't handle the leaves in my opinion. i've looked at scag and exmark walk behinds but i don't think they have the collection capacity for the leaves and walnuts. my landscaper uses a walker gcs and it does the job. iv'e looked at consumer and commercial equipment at half a dozen dealers over the last 2 months and the walker seems to be the best machine for the job, and i guess that's why my service uses it. my questiona are: am i missing something in the equipment that will do this job? what should i expect to pay for a model c walker with a 42" deck? i know this is very expensive for a homeowner but i just don't see anything else that will do the job as quickly, easily and as well. any comments would be appreciated.