ok, didn't have much time to test this one either, but take a look:
I have:
A1 - Start Date
B1 - # of Days
F1:G12 - Holiday Dates in Column F and 1-12 in Column G
Here is the formula I used:
=IF(WEEKDAY(A1+(B1+MOD(B1,6))+VLOOKUP(A1+(B1+MOD(B1,6)),F1:G12,2))=1,A1+(B1+MOD(B1,6))+VLOOKUP(A1+(B1+MOD(B1,6)),F1:G12,2)+1,A1+(B1+MOD(B1,6))+VLOOKUP(A1+(B1+MOD(B1,6)),F1:G12,2))
Maybe that will work for you...
Blue
If I wasn't
Blue, I would just be a Dragon...