A friend recently upgraded to El Capitan their 15" MBP Early 2008 and its suffering. Spec below only 2GB RAM and a nearly full 200GB HDD. So what upgrades are cost effective, she is on a budget. Advice and reommendations please. Thanks in advance and Happy New Year.
RAM - Apple suggests 4GB max however I know more is sometimes possible. Also its DDR2 667mhz, is this easy to find or do I put in faster, will 1 4GB chip in one slot work ? Is second hand memory available (in France or UK)
Harddrive, given she has a requirement for 250GB do we go with a 7200rpm Western Digital HDD (the one in my Mini is great) or stretch to an SSD ? Is this a SATA2 machine ?
I've upgraded RAM and HDD is a couple of machines before so have some experience

RAM - Apple suggests 4GB max however I know more is sometimes possible. Also its DDR2 667mhz, is this easy to find or do I put in faster, will 1 4GB chip in one slot work ? Is second hand memory available (in France or UK)
Harddrive, given she has a requirement for 250GB do we go with a 7200rpm Western Digital HDD (the one in my Mini is great) or stretch to an SSD ? Is this a SATA2 machine ?
I've upgraded RAM and HDD is a couple of machines before so have some experience