For the 1.6 SE, I would get a set of ShawSpeed SS4 cams, not really that well known on here, but over on ZSOC.com there are alot of people with them, me included.
My 1.6 SE is running these, a set of Jenvey DTH ITB's and a few other tweeks saw 166bhp on the rollers, not bad for a 1.6 eh?
Drop over onto ZSOC and have a read on there.