It is a good deal, and Resistance and Motorstorm are both good games. Flawed, but still good.
It is essentially a price drop, but that said, I'm sure people would prefer a cheaper console and a choice of whether they want an additional controller and those two particular games.
Personally, for me the extra controller would be great, as would Motorstorm, but I'd rather Virtua Fighter 5 over Resistance. I'm not much into FPS games.
And just to point out, you can actually get PS3 games for £30 now. Resistance, Motorstorm and Virtua Fighter 5 all retail for that on online sites such as Amazon.co.uk and Play.com. Which is the same price as new PS2 releases!