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If you want a program for free you can use EAGLE Light Edition from CadSoft. I works great for small projects.
The following limitations apply to the EAGLE Light Edition in general:
*The useable board area is limited to 100 x 80 mm (4 x 3.2 inches).
*Only two signal layers can be used (Top and Bottom).
*The schematic editor can only create one sheet.
AccelEDA did an excellent job for me. It's a very professional and stable tool.
Orcad is very good, but somehow not intuitive, so I never really learned getting around in it.
Older Protel is junk, use it only if you have to. I've seen many projects fucked up by this wanna-be software. I've heard that newer versions are better (2000 and newer), but have no experience with em'
When Protel bought Accel (terrible things do happen), they offered an upgrade to AccelEDA users to their junk product (Protel) for a small price!
Of course, needless to say, users were furious. Would you like an upgrade from Mercedes to Fiat for small money ?
After that they decided to market products separatelly. I don't know what's the status of AccelEDA now. Anobody has the end of story ?