Dick
Do a needs analysis. How much
PTO do you need? What do you want to use the tractor for in the non winter months?
I think if you are on the low end - 4110 vs 4530 - 4530.
If you think you need more tractor - 5530 vs 5500 vs 6000 - Look at value for your dollar, and give the 00 series a chance. Go bigger than you think you need. When I started looking - I compared the 4530 to the 5500 (5530 was not avail then). I ended up with a 6500 - but I have 70 acres. Do the needs analysis and don't worry about price fluctations between the models of 10 and 15%-considering the financing terms and warranty. Get what you need. Look at the attachments. Also when you step above 6 ft on attachments it gets real expensive. I use 6ft attachments and pretty much use the 6500 just for heavy loader work - I stay in 1 and 2nd gear alot. Buy Skid steer compatible for your loader - you won't regret it.
Hope this helps you.
Michelle