MORI show Lib Dems in second place
The BBC is reporting a new Ipsos MORI poll with topline results of CON 36%(-7), LAB 24%(-2), LDEM 25%(+8!). So far I can't find any mention of it elsewhere, and consequently don't know the fieldwork dates (though I guess from the figures it must have been conducted at a similar time to the other polls that have shown a big conference boost for the Liberal Democrats).
The BBC's report says this is the first time Labour have been in third place since 1982. I'm assuming that's referring to just Ipsos-MORI polls. More recently one ICM poll earlier this year put the Lib Dems in second, as did a Populus poll just after the Liberal Democrat conference in 2004.
UPDATE: More details are now up on MORI's website here The field work dates were September 25th to 27th (that is, Friday to Sunday). According to MORI's commentatary the big shift is largely down to changing certainty to vote. MORI take only those rating their likelihood of voting as 10/10 for their topline figures, so it can have a dramatic effect.
