One of the articles you should check is "Plumbing a new Basement Bath" in the February, 1998 edition of Family Handyman. This tells you how to lay out and run under-the-floor drain lines and vent lines for a basement bath. There are other articles in other editions that tell you how to run the supply piping and these are listed in the February article. One quote from the article is "If swinging a sledge seems to Flintstonish for you, many tool rental outlets have electric jackhammers for around $80 per day." If this does not deter you, more power to you. But I know that sentence would make me think about calling a pro. Henry