The Inspiron 1520 has what you're looking for.
It's with Intel's Core 2 Duo and you can customize it really well.
Search online for coupons, there's a ton.
For memory, you'll be OK with 1 GB, but I STRONGLY recommend 2 GB.
At the rate technology is being invented, I don't think you can buy a laptop that won't be obsolete in 3 years.
It will work, and everything, but don't expect it to run like new and run everything you throw at it. It should be fine for what you're looking for, though.