Turbocad 11 Deluxe is what you want. There is a free trial bit it is only 15 days, it will cost you £60-70 which is superb value for a CAD program.
You can buy it in certain outlets, if you know where I mean, or online from
http://www.cadcourse.net/ or at the TC site. There is also an excellent forum with lots of experienced users who will help you through the steepish learning curve required for all cad programs. Check out the gallery to see what you can do, when you get good.