Inspiron 580, with i3, or i5, need feedback.....

Our old reliable Dimension 9100 is getting glitchy.  I thought about an XPS 8100 or 9000, but aafter looking at tasks for which we use it, decided it would be overkill.  I came across the Inspiron 580 with the i3 and i5 chips that have integrated graphics.  I think it would do evrything we need.  There is a Dell offering with the i3-530 Clarkdale chip, 4GB ram, and a 320 hard drive for $529.  I put together a home build on Newegg and could not come close.  I have perused this board looking for any info on the Inspiron-580 and find nothing.  Anyone out there have any experience with one?