Flintoff, along with Kallis, Razzaq, Afridi, Bravo etc.
I don't think we need to bring in an Allrounder just because England has one. We shouldn't bring in Watson, he's not up to scratch. Symonds is the only "allrounder" we should consider, and he has shown in tests that he's useless, so for mine we either go in with an extra batsman or an extra bowler, with Gilchrist a 6.
Going out of our way to use an allrounder is stupid, but if we take one in, it should be Symonds imo.
Hell, Gillespie got 201 if they pick 4 quicks, plus Warne, we could almost take in Gillespie just on the back of his ability with the bat. Even Andy Bichel is another that wouldn't be out of place that can bat. Neither of them will probably come into consideration however.
Jaques will only come in if one of the openers get injured. Both their records are awesome and it'll probably be Langers last series, so let them be.
Johnson wouldn't be out of place at all, but whether he warrants selection is another thing.
Hayden
Langer
Ponting
Martyn
Hussey
Clarke/Symonds
Gilchrist
Lee
Warne
Johnson/Clark
McGrath