Plumbing Solutions Cost $$$

I got an estimate today to have my kitchen sink repaired. I need a new garbage disposal, a new faucet and new pipes beneath the sink. I'm going to buy the faucet and disposal and the "handyman" is going to install them. I think the cost of installation is pretty reasonable, $100.
I've been pricing disposals online and it looks like there are three categories: low price (1/2 HP), medium price (has sound insulation, 3/4 HP), high price (1HP, "whisper quiet"). I'm thinking that the medium price one will be best. Does anyone have any information about disposals?
I will pay for the repairs with my debt snowball, so I will be sending less to the credit cards this month, but the balance still be going in the right direction--down!

Murphy strikes!

Yesterday, as I was stopping at a traffic light, I heard a horrible, metal-to-metal grinding noise from the front of my car. I made an appointment for this morning, and sure enough, my car needs new brakes on the front. Even though this is not great news, it is not the end of the world either. I will pay for the brakes with the money I was going to snowball to my credit card. I may have to use just a little of my emergency fund for food and gas expenses for the rest of the month. I'm feeling pretty good about the situation.
One interesting side note...as I was getting ready to write the check, I was tempted to pull out my credit card and use it. I think I will have to fight this temptation for a long time. Maybe it's time to take the final credit card out of my purse and leave it home. Maybe it's time to cut up the final card...
I'm thankful that I have enough money to cover this expense and I'm also thankful for friends and family who taxied me while my car was in the shop!