Woah at the prices, really stupidly priced chips unfortunately, if the intergrated were anything to write home about might be worth it.
THe i5 6xx's are just entirely pointless when you can get a twice as fast chip for less. THe i3's are closer to useful for an el cheapo machine that can do HD, but then you can pick up a £40 cpu and a £20 discrete gpu, have more power, more versatility and cost less.
Its a needed step I guess but Intel really need a Larabee derivitive, with a proper unified core, without the memory controller separated from the main core, even if on the same chip, then you'll be looking at some serious value from the chip.
Guess it will be a good couple years, if not more, before intergrated gpu's can really be treated like an extension of normal CPU's FPU units, so it can seemlessly be used by software, any software.
Thing is I'm all for overclocking, but not for the sake of it. I'll overclock for fun but wouldn't waste the power of 5Ghz per core and the voltage to go with it, when nothing would require more than 3.5Ghz. When I had a 1.4Ghz tbird, i clocked it up and saw a real world advantage, since quads became somewhat the norm, I just find nothing I do actually requires the overclock I can achieve, a minor almost free overclock at stock voltage, I quite literally see no improvement from another 600-800Mhz in any game I've played.
£113, for a dual core chip, when you can pick up quads for around £70 that will do 3.5Ghz and eat anything most of us need.
Those of us that actually need cpu power, people who do work on their comp, time sensitive stuff, number crunching, video editing and the like, again you'd be insane not to pick up a i5 750 minimum.
A lot of reviews agreed the i5 versions are rather boring, the i3's are nice, but priced too high, its a great bonus to get an i3 for a very small increase in cost over alternate intergrated solutions, but being a lot more expensive than far faster intergrated makes them really quite stupid. AMD have got their next gen intergrated out in not to long aswell.