I 2nd OnebyOne--a beginning quilt class is a great place to start to avoid lots of frustration. And for rulers, I recommend that my beginners get 2--a 6 (or 6.5) x 24 (you need the lenght for cutting strips, borders, etc) and a 12 (or 12.5)" square--so you can square up blocks, cut bigger blocks, etc.
In the meantime, do some small projects and get really acquainted with your new machine and work on getting an accurate 1/4" seam (sew 2.5" squares together and if it's an accurate 1/4" seam your finished block of squares should measure an exact 4 1/2" rectangle--getting that 1/4" seam is probably the most important first step). Welcome to quilting!