Uh that's a tough one. I can't really make a prediction. They're there proven wrong. Anyway, i would guess that Chelsea won't play a better role than last season, maybe worse, cause i think it needs time to get all them new players together as a team, even though they bought some good players.
For Pool, well if Kewell gets properly into the team, and Owen plays a better season than last year they might be joining Arsenal and ManU at the top of the league. Though ManU has to compensate two losses (Beckham and Veron) which were quite important, but i doubt they won't have let them go when they would think the would need them. It's kinda hard to tell really. But it will be hopefully a thrilling season at least.
About Everton, i somehow like that team, though i'm a pool fan ( i know this contradicts completely), but i feel that for them it will be a tough season.