Hey guys I'm looking for an external hard drive for college. Probably around 250-400GB. Question. While I'm on my computer can I get into the External hard drive and access games? For example could I NOT have Counter strike on my actual computer, but on my external hard drive and play it on my computer w/o any problems? What do I look for when searching for these hard drives? Speed or anything else? Please tell me what these numbers mean. Thanks