D series is still the latest version. I believe started in spring of 2007. Have you considered a 5610? Just used mine the past 2 weeks with total of 23" of snow and drifts. I have a blower on the back and plow on the front. Really nice setup but is a little long in length with attachments on front and rear. You could also put a pusher on the front.
My 65" blower was going some drifts as high as 4-5'. Worked great in the snow 2-3' tall.
Could also run with blower on the front and blade or pusher on the back. I believe you already have a front blower? 5610 will list for just over 50K which bites.
The d series has a much smoother ride and 4wd is better. I believe bobcat has low financing and/or rebates on the TC.
