One other thing about really getting into digital photography and video:
Better plan on seriously rethinking your home PC situation, particularly with regards to disk space and backup. Your hard drive becomes a precious repository that can't be replaced.
Last year I lost several months of photos due to a catastrophic disk failure where I was only able to save a portion of my photos to another drive before it literally physically crashed and turned itself into a paper weight. This summer my system disk failed ... recoverable, but I still had to reinstall Windows and ALL my programs ... several days of work.
Now, I keep all my photos and videos on a separate 250 GB harddrive, and I have a separate 'backup' 300 GB harddrive setup (as a 'compressed' drive) to automatically mirror the contents of my 'documents' drive and my primary system drive. If any one hard drive suffers catastrophic failure, I can still recover everything within a couple hours.
My paranoia hasn't gone so far that I've worried about 'offsite' storage for copies of this precious data

... but, I do worry about the possibility of theft when we are out of town on long vacations. For that, I have all three drives in one quick-release removable 'cage' ... in seconds I pop a few cables, remove the entire cage. If I get burglarized while we gone on vacation, the theives would only get the system case without any drives ... which can be easily replaced.
I've looked at online, Internet based backup services, but for the huge amount of data I have with photos, videos, music library, etc., it's just cost prohibitive.