retrocomputing

So, Last year I lost my vintage computers (most of them a work in progress) in a house fire. I've started rebuilding my collection. I've got my TI-83+ still, I consider that to be one. It was with me when the fire happened, and I have an old windows 95 computer I got my hands on, still not sure what to do with him yet. Ideas on projects/places to go next. Would love to find something reliable that can takes datasets, but is reasonably priced.