Tough game and yes, and as already stated, there's some concerns on our side.
That said, if all 3 of Gerrard, Sturridge and Suarez make it through their respective game this week, i'd back them to be fit and raring to go for the Derby. It's arguably the biggest in recent years, they've 8 days before their next game after Everton and adrenaline will get through if they're carrying knocks/fatigued.
Everton are a strong side no doubt about it but they're not without weaknesses.. Jakielka and Distin are good, experienced pros but put them up against skillful and pacy strikers and they can be vulnerable...Suarez and Sturridge can get at them. Also feel there's a mistake in Howard as well.