i'd say get lowryder 2 instead of 1, it's supposed to be that bit more reliable, but whatever floats your boat.
the seedbank may depend on where you live - i've heard a lot of them don't ship to the states (i'm uk so dunno), apparently attitude are good for USA but that's purely hearsay on my part.
go check out the seedbank reviews section of the forum see if that helps you out.
i tend to use amsterdm
marijuana seedbank but while their delivery and all that is fine the actual seeds aren't be greatest quality (poor germination rate, lots of males). i'm planning to use lowryderseeds.eu for my next buy.
as for the grow i'd say just really do your research before you get started. most of the kind folks here at RIU are brimming with good advice. there are some folk that float around doling out turds as diamonds though so try and get a second opinion if you have doubts. check out the grow journals, i always find theyre helpful for reference and making sure you're on the right track.
take care of your babies and they'll respond well.
and good luck