A FEL is one of the most useful tools you can own for a tractor. You can use it to move dirt, move rock, move mulch, move anything you would have used a wheelbarrel for in the past but more because now you will actually do it as you have the right tool.
You can dig (although limited) with a FEL (recommend a toothbar for this in addition to hte FEL), you can lift items with a FEL (i.e. you just brought home something from a store and its too heavy to handle by hand....use the FEL with proper chains, straps etc. (and of course the Clevis hooks welded on the bucket).
You can do many more projects for the lovely misses than you could in the past as you will have the right tool (i.e. flower beds, landscaping projects etc.).
You can back drag dirt to level out impressions in your yard, you can maintain your driveway during both the Winter with snow as well as the Summer with washout maintenance (if gravel or dirt of course).
Lastly, your back will thank you for years to come!!! /forums/images/graemlins/grin.gif
Now as for the back blade, it will work faster for snow removal as long as you take care of it before it gets too deep. It will also be very helpful for maintaining a drive in the Summer maintenance time. It will also provide decent rear ballast for your FEL.
So bottom line is get the FEL for sure, pick up a cheap (few hundred bucks) light duty back blade from TSC or similar place and have the best for both worlds.
When I bought my BX I was looking for a power angle front blade not a FEL. Several dealers said to get the FEL as I could use it for many more things and it was only a $400 difference. I am very glad I listened as my FEL gets much more use than a blade would have and I wouldn't be without it.
Hope that gives you some ideas of the uses and value of the FEL. It turns your tractor into more than just a lawn mower /forums/images/graemlins/grin.gif
Good luck with your decision.
One last bit of advice, if your financing, get all of the pieces you want now as it is much harder to go out and spend several hundred more dollars for an implement when your already making a payment than it is to come up with a few more bucks a month. Also harder to convince the wife.....