Tommee Tippee all the way - I got an Avent pump and bottle set thinking all bottles were the same (little did I know...) and was horrified when LO wouldn't even entertain the Avent teats... But she didn't even seem to notice that the Closer to Nature teats weren't me! A relief, but a little bit tragic, too...
I now express straight into Lansinoh bags (they stretch over the neck of the pump, you need to use two hands, one to pump and one to hold the bag on, but it's not like you can do much else when you're expressing anyway) and then stick in the fridge or freezer to be decanted into TT bottles when needed.
Net time I'd buy a TT pump straight off, but beggars can't be choosers and all that
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