I am a new Mac User and I am not well versed with technical lingo at all... so if you're answering... please bear this in mind, k? lol My question is this: my macbook pro came with 4 GB of memory and 250 GB of hard drive (does that mean ram?), and I am wondering how that extra 6 GB (by upgrading to snow leopard) will affect me. Will this give me extra room on my hard drive (ram) or extra memory? And what is the difference anyway... between hard drive (ram) and memory? Is 4 GB more than sufficient for the average user like me? Same question for the 250 GB of ram. I have really enjoyed reading the threads here and I look forward to hearing from anyone who could provide me with clarification... without getting too technical. Many thanks!