but intel mobos are not that good i think.....u can always moderately overclock the AMD+mobo with 690G chipset one to get better performance but i doubt u can do that in intel mobos.
And E2140 and 2160 are of Core architecture and not core 2.....that means slightly less performance clock for clock and slightly higher power consumption than core 2(but only marginally).
And these proceies have almost exactly same performance as athlon X2 lower end parts.....but the newer series of 45W Athloin X2 are highly power efficient(than core 2) and overclocking on air tremendously....

so i think for cafe,it is better....but its your choice and u cant really go wrong with either....
And how does X3100 comapre with X3000...any significant changes ?? And when is G35 supposed with X3500 to come ?? ...but i am not holding my breadth as i am tired of these highly hyped intel /IGP but not performig much....also for these IGPs driver suporting Dx10 will come only in next year.....
And with launch of desktop variants of Barcelona,AMDs 7xx chipset is going to arrive with much better IGP than 690G....

but still a long way...about 3 months.