@bauermt40,
Here are a few fun ideas I can think of and have used personally...
1. For the ceiling: You can buy sheet metal and nail it to the unfinished boards. It creates fun lighting and a silver glow and it's really cheap. Also it makes it so that you can access anything that's up there such as cables, pipes, etc.
2. You can paint the concrete walls a tan or neutral color to creat a warmer feel instead of basement feel!
3. We have a ping poing table (not pool table) but we set that up in an area and bought a small pub height table from Target for cocktails to sit on, and bought a few extra bar stools to sit at as well!
4. we also have a desk and computer in an area and bought 2 of those folding walls with picture frames in them to enclose a little area.
5. Lastly to close off laundry room (our specific problem as well). Getting fun tapestry or curtains is what we did. It's not fabulous but totally does that trick!
I hope you like any of these ideas
Good Luck!