I'd go with the Intel. The AMD is only 1.7ghz, where the Intel is 2.0ghz. Core Duo isn't that much behind Core 2, so the Intel should outperform it by a fair bit.
Thanks for your help guys
but i noticed both were entry level notebooks so i decided to go with "AMD Turion™ 64 X2 Dual-Core Mobile Technology TL-58" based notebook.
This should keep me going for awhile..