I bought Medela swing which was OK but because of supply problems I rented a hospital grade double pump from Ana Wiz .
I used the Spectra 2 for about 2 months (before calling it quits for the sake of my own sanity) but would recommend the Spectra over Medela - it had a timer, was capable of pulling a stronger vacuum, could be switched easily from being a single pump to double, and due to some attachments on the tubing it was effectively a closed system (and didn't get moisture in the tubing like with the Swing).
The medela bottles and pumping accessories were compatible with the Spectra pump, but I found that the Spectra one way valves were more user friendly. The spectra rental came with storage bottles and was very easy to post back when I was finished. I was able to keep the bottles they sent with the pump so we know use them for the cooled boiled water needed for dd's bottles. They customer service was wonderful too. They same company also runs an ebay shop (which was actually how I found them) which sells all manner of bf/ff feeding supplies
If you find that you have a good supply then the Medela swing would probably work fine (and there are hacks available to covert it to a double pump, try searching on YouTube). The Swing came with decent bottles and a good Calma teat (which dd used from 5 days old). However, I much preferred the Spectra pump, it was one of the least expensive hospital grade pumps I found for rental online. It was not as quiet as the Medela swing but definitely more powerful and efficient (for me). When its time for dc2 I will probably go straight for renting a Spectra 2 for a few months and expressing rather than attempting bf again.
The infant feeding boards here are full of very knowledgeable ladies so have a look on there (if you haven't already).
Other information you might find useful - we used cold water sterilisation for bottles so the pumping equipment just went in the water bath until next use.
Make sure you get the right size breast shields for your nipples. The Pumps I had came with 24 or 25 mm funnels, but I found that when I went up to a 27 mm set my milk flow was better (breast shield size guide from the Medela website. Diffent sized shield can be bought from Mothercare but are much cheaper from Ana Wiz/ebay.
You can buy pumping bras online but they are very expensive (and seeing as I am an H cup was impossible to find anything in my size) - instead I bought a cheap stretchy halter neck bikini top and just cut a few holes in it. I kept it tied round my waist throughout the day and raised the halter tie over my head whenever I wanted to pump.
Finally (sorry for the essay) I would suggest that you learn how to hand express (again, I watched YouTube for tutorials on this). I had days where I was fed up with being hooked up to a pump (pumping 10+ times a day and during the night to increase my supply). Hand expressing gave me a bit freedom from that without affecting my supply.
Good luck with everything.
