If it was your own money, which would you have?
[url= http://www.currys.co.uk/gbuk/advent-roma-4001-04892132-pdt.html#tab-tech-specs ]Number 1[/url]
[url= http://www.europc.co.uk/product.php?productid=137688 ]Number 2[/url]
Or
[url= http://www.currys.co.uk/gbuk/advent-sienna-500-04868440-pdt.html?srcid=369&xtor=AL-1 ]Number 3[/url]
And why?
Bearing in mind number 2 is a refurb.
The I5 or if you didn't want to spend that much one of these - http://www.ebuyer.com/product/201750
The Lenovo in the second post, no question. I'd put brand as a higher priority than minor differences in spec. I'm no fan of Advent, and haven't dealt with the new PB (and would be sceptical of a refurb).
mmm... 3, cause it's better, innit. The family tree of processors goes Pentium, Core 2 Duo, i5, and while later doesn't necessarily mean better, Pentium is pretty old tech by now.