Upgrading late 2007 Macbook, recommended hardware?

1. RAM: http://eshop.macsales.com/shop/memory/MacBook/DDR2/ or http://www.newegg.com or any other vendor you like, that offers PC-5300 DDR2 667MHz SO-DIMM 200 Pin RAM.

2. Any 2.5" S-ATA HDD with a maximum height of 9.5mm, which gives you up to 750GB right now.

Look into your User Guide on how to do this, or Apple, or http://www.ifixit.com
MacBook, MacBook Pro: Replacing the Hard Disk Drive, transferring data to the new HDD


MRoogle is a good tool to search these fora for already existing threads about questions you have. It might be able to answer you quicker than waiting for an answer.

http://eshop.macsales.com/item/Other World Computing/5300DDR2S4GP/

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231135

Thankfully the prices haven't skyrocketed. A SSD wouldn't hurt otherwise.

MacSales.com is a great site to shop and purchase Mac upgrades. They test and guarantee all of their offerings for your Mac. -GDF