Vince, the best way to learn anything is by screwing it up at least once or at least talking with someone who screwed it up previously. No shame in that from my prospective. It's served me well for many years. Heck, I even cry once in a while - especially when I hit my thumb with the mini-sledge
.
OK, so my 2 cents based on your answer is box blade (for leveling, distributing gravel, ripping up virgin ground, etc.) and rear blade (for snow) used in conjunction with your FEL.
A toothbar is on my short list of items to buy, but I've been getting along ok so far without it. Many on TBN swear by it and they've convinced me to get one sometime soon.
SnowBlower has always intrigued me but I've read on the various TBN forums that it's application can be rather spotty. Sometimes a PITA, doesn't work well with certain types of snow, etc. I read enough to make me think twice before pulling the trigger on that one (the near $2k price doesn't help either). If I got a real buy? Maybe.
Other attachments depend on your needs. Putting up tons of fence posts and planting a lot? Then a post hole digger can be worth it's weight in gold. Same with many other attachments.
I'm not a big backhoe fan for a number of reasons. I tend to switch a lot of attachments. PHD, Rotary Mower,
Chipper, Back Blade, Box Blade, Rear Forks etc. I'd have to remove the backhoe to change over to anything. Too much for this old back
. My particular solution was to buy an old Ditch Witch backhoe / trencher and have an exclusive backhoe to use whenever I want. Works for me.
Last thought - have a tool box on the tractor filled with extra pins, a hammer, pin punch, some adjustable wrenches, etc. Nothing beats breaking down or losing a pin without any tools on board and then having to trek across your acreage back to the house / garage. Don't forget to install a drink holder too
. Enjoy that new machine, be safe and don't forget to post some new pics of the "baby".