Profili is an excellent program for choosing and drawing airfoils, with thousands of airfoils, including polars to determine performance, and facilities to draw spars, lightening holes, blending root to tip, smooth chord changes, and much more. Shareware (You choose how much) or an older, more limited freeware version is available.
Easily produce foam template, built up wings, leading edge shaping guides, and planforms. You simply specify the basic geometry of the wing, as well as any spars, holes, building tabs, etc., and CompuFoil does the rest. Shareware from $38.