Hi M.,
Congrats! Hope all is well with your newest addition.
My oldest son had a hard time with the bottle, he always seemed to prefer me over it (which was secretly fine with me!), but it was a difficult transition when I went back to work. Eventually, when he was hungry enough he ate - he did best with the Playtex with disposable liners (store brand - check Walgreen's or Rite Aid), but not the Drop Ins, they tended to leak. I would feed him first thing before I left in the morning, come home at lunch if I could, and then feed him immediately upon my return home.
We also tried Avent, Medela, and a couple of others. My second son, however, had no problems with switching from bottles to breast, but probably moreso b/c I was more comfortable with what I was doing!
Best wishes for a smooth transition back to "normal" :)
B.