what mumface said
bright colours; fuzzibunz are a pocket nappy that come in lots of bright colours, they also do some lovely daisy print ones that are gorgeous; check out nappyzone's website. Itti bitti nappies are snap all in ones, are fluffy and gorgeous and again come in lots of colours as well as some limited edition prints.
bumgenius are really good and do a range of lights and brights in colours. Not everyone gets on with pocket nappies though as it very much depends on the shape of the baby and the fit of the pocket.
As a novice I think a shaped terry nappy would be a good place to start, they are more reliable than a pocket or all in one so less likely to put you off if , and there are some lovely wraps that you can get to go over the top; tots rainbow wraps are funky and bright or wee notions also do some lovely wraps.
At 12lbs you can either buy a sized system (size 1s usually go up to about 20lbs so follow her line on the charts to see how much wear you will get out of a sized nappy) or else go for a birth to potty option, which can swamp a newborn but should be OK on a 12lb baby. Bambinex, lollipop, motherease all do a shaped terry birth to potty nappy which either fasten with velcro or poppers or you can use a size 2 nippa nappy and just fold down the front.
any clearer?
you could always contact a local nappy advisor to arrange a demo where they will come and show you the various options and some may even have trial kits that they will lend or hire out. If they hire them you will usually be refunded the hire cost if you then buy nappies from or through them.
Lollipop, babykind and others have advisors up and down the country or else local sellers will be happy to advise as well.