In no particular order.
Anoncoin - Interesting concept, I think it has a good community although they aren't as loud as some others, could see it moving into the top 10 market cap wise, still kinda cheap I think.
Freicoin - I just like the idea of demurrage and I think that makes it a very unique coin, solid community, will attract idealists in the long term, good long term investment, won't buy any more in the short term.
Quark - Great coin technically, lots of issues though, I can see the hype + price picking up again in the short term, medium-long term I have no idea, could replace bitcoin, could fizzle to nothing, i have not idea, i've got some anyway
Namecoin - solid practical use, i'm not going to buy any more though as I think the cheaper alts are a better investment short term.
Franko - Nothing special except that I think it has a great community and ideals and is still really cheap considering that, wouldn't be surprised if the price went up 10x in the next couple of weeks. Great longshot that is still relatively safe.
Tagcoin - Interesting idea with commercial value, also cheap imo.
Goldcoin - Don't know how much I like this one, but seems like it's community is doing a good job of promoting it.