Point of clarification, Jeepman. What I've always heard called drop-D is just standard tuning with the bass E string lowered to D. Is that what you're looking for? If so, D is just the usual configuration except that you get much better bass; G is first string third fret, 2S 3F, 3S open, 4,5&6S 5F; A or A7 usual configuration.

It's pretty unusual that you'd need a C chord in this progression, but if you do just a standard 5-sting C works (don't play bass E string, now a D). Same thing with the F chord and for an E it's just the standard pattern with the 6th string fretted at the second.

Love this pattern — you can do so much up the neck with it. Try a "long A" configuration and slide it up to the 7th & 10th frets for the D chord, then the standard D configuration at the 7/8/7 fret for the G and a standard A7. You can do all kinds of neat stuff up there.

happy picking,

david