I didn't buy anything till I was home. I had loads of milk (multiple let downs galore) and hand expressing to take the edge off was taking too much time.
I got the avent manual pump. It came with 2 bottles and to sterilise I boiled what I needed in a big saucepan on the stove.
As it was I went back to TAFE p/t when Mason was 6 weeks old so would have needed to get one anyway.