If you don't want to dig deep into OGL or DirectX then there are libraries that abstact these API's into something easier and more quick to work with like Phoenix and Asphyre. IMO the advantages are just to many to not use either OGL or DirectX. Sure you could probably do lemmings with Graphics32, but if you wanted to make a new game or make some big changes to lemmings, then you will need a 3D hardware api.