I'd suggest that for now, you should keep things easy for now & sit down w/ them to review the final pictures using a CD or USB drive & their (or your) computer. Then, as time goes on, work on a website & all that fun stuff.
I have a Zenfolio acct too (www.zenfolio.com
), so I can help a little w/ the question relating to that. There's an option w/in the Zenfolio portfolio that prevents people from right-clicking the picture & saving it to their computer. But if they're extremely computer literate, they'd still be able to dig it out of the browser's cache.
Regarding the 'web ready", it sounds like karobinson gives her clients a disc of the agreed # of pictures that are great for viewing on the web (ie...personal web sites, thru email, blogs, etc..), but probably don't print out too well in 3x5 size & up. But karobinson would have to answer that one as that's my guess as to what she means by that.
They have a 14 day trial period. You should check it out...I'm happy w/ them.
how much time do you have til this party? to be honest (not knocking ya here), but it sounds like you're not really ready for a paid photog event. You have very legit questions (good thing!), but to implement the responses could take more time than you have. You should really sit down, figure out exactly how you wanna do something like this. Come up w/ packages/options, pic viewing access, pic availability to clients, contracts (if you wanna be serious about it), & anything else that may come up.