We used reusable nappies with dd - totsbots. We bought a bundle at the baby show. We bought easyfit (one size fits all) but dd was 6lb 6 and they were too leaky until she reached about 9lb to be honest.
Then when she hit about 7 months old her legs were chunky and the nappies seemed to cut into her and the Velcro rubbed her tummy sometimes, I felt so guilty seeing the marks. Also she has sensitive skin and started getting nappy rash - and the only way to fix it was disposables overnight and then on and off during the day... Eventually we kept having to switch to disposables for days at the time and we just gave up. I was sad about it, but she was happier.
Having said that our friend uses Bambino Mio and a selection of others and is very happy (she uses lots of fleecey boosters for her mammoth wee-er!) She has no probe with rash at all and doesn't use cream. I wish we had trialled a few of each before buying the bulk deal we did.
So that's one of my tips, trial a few then choose the best. And eBay is fine for reusable nappies, according to my friend, its where she bought most if hers. You save money in the long run, we did the maths, since they should (ahem) last through to potty training.
Secondly, one size firs all ones are not necessarily all they are cracked up to be.
And lastly, yes you have to wash nappies every day or every other day, but the poo thing is fine (flushable liners if you like, that's what we did, it gets most of it) but they look so darn cute!!!
Oh, and wineandchoccy 
12+4