could it be posible for me to just put everything on an SSD? because i don't want to have to deal with an HDD's slowness. i'm not going to be storing alot, just a couple games my OS and any other tiny thing here and there. im not looking to put a bunch of music or tons of photos, i am interested in a little bit of video editing for my youtube channel but other than all that i don't think i need an SSD and an HDD right? just an SSD will do?
Sure. You just need to estimate the most you expect to store on the drive at any one time and pick a drive a bit larger than that. Larger SSD are still more expensive than similarly spacious HDDs but have come down in price quite a bit. There are reasonably priced SSDs up to 256 GB while 512 GB and even TB SSDs are still a bit too pricey to be mainstream.