For that little bit of CAD or for a lot of CAD this application should suit you…
Size: 50.4Mb
System Requirements:
- Intel Pentium (or compatible processor), 166 MHz.
- 64 MB RAM
- 85 MB of hard disk for software and examples
- Windows 95 OSR2, Windows 98, Windows Me, Windows 2000, or Windows NT 4.0 (Service Pack 3 or higher) Operating System
- Monitor: Windows graphic display setting of 65536 colors (High Color, True Color, 16-bit). (Use of a supported OpenGL card may improve graphics refresh rate.)
File: http://rapidshare.com/files/28971280/ProDTP.exe Password: Warez-BB.org
Notes: This is a self extracting exe file, simply extract with the above password and run StartUp.exe to install.
Hope you enjoy this, i’ve seen some pretty good models made with it 
Please give thanks 