I bought a Sherline 4400 lathe last year with the C package which includes the compound slide and thread cutting attachment. Link to listing of the extra bits and bobs http://sherline.com/product/4400c4410c-package/ I'm getting ready to buy the 5400 mill I was planning on getting it with the A package. http://sherline.com/product/5400a5410a-deluxe-mill-package/ Rotary tables were on sale for August (20% off) so I picked up the standard 4" manual rotary table. What I could really could use is to have somebody look at the A package, and what I've already got with the Lathe C package and see if there is anything else that I will really want right away that I wont have with those. I'm less familiar with milling than with lathes (although that isn't saying much). I realize there are many variables based on intended use. I'm just trying to ensure I don't leave off something really useful for basic milling. Like with the lathe, the rear cutoff was not an essential tool, but it is really nice to have because it works so much better.