Hi Bob,
I've done two so far, one personal and the other for an estate.
The personal trust was done with NOLO's software, revised with some additions for specific wording done in the first trust drafted by the lawyer handling estate items.
A living trust is a trust, just like a will is a will, even if its written on an orange (true story). Depending on your situation (grantors, trustees, beneficiaries, etc.) the computer software works for most people. 99% of the time it will clear the ATF for the initial purchase. Keep in mind the trust is only validated is an invalid or valid trust, it can be reviewed and upon the execution phase, that could mean a knock on the door and some hefty fines if something isn't jiving. If aren't a convicted felon, can verify your income from birth, and don't have an extensive travel record overseas -- you should be OK.
The one key element that is left out on most online postings: you cannot purchase anything being declared in the trust with a personal account. All of your purchases need to be made with an account registered to the trust and therefor acting as the trust.
I've found that PNC will create an account in the name of the trust without classifying it as an investment account, so: no fees, 5$ min balance, regular checking account. I normally bank with 53rd and USAA - both wanted to only talk about $$,$$$.$$ style of accounts.
I would say reading over all of the ATFs' documents relating to what you want to do. Ignorance is not an excuse and is not taken lightly.