Dragging My Feet on Potty Training

I'm having one of those yucky days. I've had a cold for over two weeks and it's really getting old. There hasn't been a lot of coughing, just mucus (gross, sorry!), stuffy sinus headaches, sneezing, and sleepless nights. Did I mention that Julian is sick too and has been waking up in the middle of the night every night. Well, last night he didn't wake up. The problem was, I couldn't fall asleep! My head was pounding and I could barely breathe. I think I fell asleep a little after 4am. Then, Julian woke up a little after 6am. Needless to say, I haven't accomplished anything today. I'm determined I will get "Dining Room" crossed off my Spring Cleaning List later today.

The point of this post was to talk about my lack of motivation to potty train Isabel. Every time I change her diaper (especially the stinky stinky stinky poopy ones) I tell her that we need to get her to go on the toilet. Then, I tell myself, "I will do it starting Monday". But, I don't. I know what I need to do. I just need to take away the diapers and let wear underwear so she can get used to the sensation. Honestly though...

1. I really really don't want to clean up human urine and feces from all over the house. Am I being dramatic? Will it really not be that bad? 
2. My second complaint is that Isabel says that she doesn't want to go in the potty. She's stubborn. She says she wants diapers. Does this mean I should wait? Is she not ready? I've made a potty chart with sticker, I've tried bribing her with a little piece of chocolate. They didn't make her want to do it.
3. I can't really take away the diapers....They will still be right here for Julian.

That's pretty much all I have to say about why I don't want to potty train her. Somebody give me some advice/help.

3/12/12 Update: Isabel is fully potty trained!