I'm looking for simple and easy fastener, weld symbol, and electrical symbol add ons compatible with acad 07 & 08.any suggestions?Preferably, I'm looking for add ons which has menus so that I can select different size fasteners or weld notes.  The last useful software I used like this was a "utility" that lets you describe and enter the type of fastener with size, length, and then lets you insert it.also, preferably no libraries, but would be interested if they are simple, easy, efficient, and cheap.