Thanks for the replies, everyone!
Lilach, great suggestions! Christofle's Malmaison is actually in my top 3! Do you think it's a bit too formal for Siesta, though? The Robbe & Berking pattern might be a little masculine for what I'm looking for, though, but thanks very much.
Guccigal07, what a deal! It's stainless, right? Lovely set-up. I'm actually looking for pure sterling because I really like the patina of silver. I seriously considered Hermes as well but they don't make pure sterling, just silverplate. Puiforcat definitely makes sterling but I haven't had a chance to really explore their patterns. Looks like you're having a lot of fun with your china!!
KB, thanks--good idea; I should have mentioned my preferences. I prefer something pretty simple, not a lot of fluorish, and with more curves than angles. Siesta, as you can see, is a busy pattern, so I think I'd like something that won't clash.