This is a difficult situation to find yourself in, but there are some things you can do. As has been mentioned in previous posts, your gas, commute, utilities, and grocery bills are high.
A few things that come to mind for me are:
1. Consider after your wife's operation, her taking on some part-time remote work. Even though she is in a wheelchair, there is a lot she can still do. Any additional money picked up in this way throw right at the highest interest credit card to snowball that one, then the next one down to nothing.
2. Yes, check out Aldi, as an alternative. Also, as mentioned in previous posts, cut the red meat and look for family packs. Do not buy packaged products, but the raw ingredients, making your own dishes that way.
3. Is there any way you can carpool with other people from work? You may be able to recoup a little money in this way, or at least not spend as much, depending on if you charge them, or if you simply get a ride.
4. Contribute to your retirement plan up to the match, and then put everything else toward the debt. That way you're not leaving anything on the table.
5. Finally, look around your house to see if there's anything you can do without: Old books, DVD's, clothes, furniture, anything! Do a personal inventory of everything you own and see if you've used it in the past year. If not, sell it. Take whatever money you make from this and put it directly toward your debt at a 1:1 ratio. Using Amazon, E-bay, and craigslist can net you quite a bit for the junk just sitting around cluttering up your house.
I hope your wife's operation goes well, and some of what the community offers is useful to you.
Best wishes,
J-