Question
I don't know anything about aquatic plants, but I would love to have a wide planter in my house with some lilly pads and maybe a few other things. Would that be reasonable? Maybe near a window? Do the planters need to be really deep? I live in Seattle (which is why I'd prefer an indoor, year-round water thingy to appreciate). Any good websites you can point me towards would also be appreciated.

Answer
Hi Cindie,
Thanx for your question.  You can have an indoor aquatic display or pond.  Any non-porous container would probably do.  I'm not much of an expert on this but try out this website and if you need more info, let me know.  I hope this helps.
Tom

http://www.bbg.org/gar2/topics/indoor/handbooks/landscaping/water.html