I haven't actually commented on these sets yet, so I think I will now.
Small Racers - They look OK, but I prefer the first wave that came out in January.
Other Racers - I don't particularly like the Truck, but the Furious Streetfighter is great. It's a shame there's so many stickers though, with lots of them covering multiple pieces.
Tecnhic Enzo - This keeps looking better with every picture I see. Unlike the first pictures we saw of it, it now really does look like an Enzo. I'm not sure whether I'll get it though, I'll probably spend most of my money on Star Wars and Vikings!
Underwater Exploration - I don't like it, it's probably my least favourite Designer set Lego have produced. The submarine is just so plain and blocky, and the other things look weird.
7016 Viking set - I think I prefer this set to the one with the boat and the Kracken. I like the Battle Ram, and the bull looks really good. I've got a feeling that this is just the prototype though, and we'll get the Boat as the final set. Hopefully we'll find out at Toy Fair.
Bionicle minifig sets - I actually think these are pretty good. The Battle Ram set doesn't look that great, but the other two are OK. The Tower of Toa set (the one with the big orange Bionicle thing shooting at it) looks quite good I think. I won't buy any, but I bet Bionicle fans will love them. One question though, why do these sets get so many minifigs compared to normal sets?