Terms and conditions: Limit of one trade-in per new computer purchased. Trade-in unit must be a laptop with one of the following processors: Intel® Celeron™, Intel® Pentium™ 4, Intel® Pentium™ M, Intel® Pentium™ dual core, Intel® Core™ 2 Solo, Intel® Core™ 2 Duo, Intel® Core™ 2 Quad, Intel® Centrino™, Intel® Extreme Edition, Intel® Core™ i3, Intel® Core™ i5, Intel® Core™ i7, AMD Sempron™, AMD Athlon™ X2, AMD Turion™ X2. It must also have an optical drive (e.g. CD/DVD), power up and log into an OS, include the correct power supply and battery, not be locked by a password and not have any significant cosmetic damage, i.e. the keyboard and screen must be undamaged and the casing and hinges intact.