4GB of ram is my minimum recommendation if it must last you through university (assuming 3-4 years).
For the processor, attempt to get a quad core if it is in your pricerange. Also, stick with intel in the notebook sector.
Even though you aren't using something that would make great using of a good graphics chip, I still recommend you don't cheap out. You can stick with integrated, but go with an ATI or Nvidia chip. Avoid the 6xxx and 8xxx chips from Nvidia though.