Not knowing your full situation makes it somewhat difficult to make suggestions, but here goes...
First, unless your husband is being totally unreasonable (and you have to look at it honestly, not emotionally) then your daughter NEEDS you and your husband to have a united front. Right now she sees that she can play you against each other and that you will be on "her side".
Most children around this age get really trying because they are entering into a new developmental stage - one where they are realizing that they are NOT the exact center of the universe. This is very unsettling to them because it changes the very foundations of what they had believed in.
She is also is testing the boundries of how much SHE can affect her world. She is learning that she can change things by her actions. This can make for one stubborn little girl!
I don't know of any DVD's but two books I found enormously helpful were: "The Happiest Toddler on the Block" by Harvey Karp and "The Girlfriend's Guide to Toddlers" by Vicki Iovine.
You and your husband need to sit down together and agree on some new boundries for your daughter. I'd recommend that you read those books (yes, it would be your responsibility to read them) and highlight a FEW things you want your husband to read. (No more than 5 or 6 total per book.) Then ask for his help.
A good way to approach this with the hubby is: "(name) is in a new developmental stage and she needs new rules. Can you help me come up with some new guide-lines for her so that we are both on the same page and present a united front to her?" Let him make the first few suggestions.
When dealing with these new rules you MUST be consistant! If you waver or don't enforce them _A_L_L_ the time, she will keep testing and "poking" at that "hole" in the rules.
Another option is to check with your local community center. Many times they have speakers/classes on parenting that difficult transition from "baby" to "toddler".
Good Luck!
K.
Mom to a VERY strong willed daughter.