✔ 最佳答案
Check out the Canon Powershot A650-IS, which has the flip and twist monitor you want.
http://www.dpreview.com/reviews/specs/Canon/canon_a650is.asp
You might also still find an A640 or A630 available. Either one is a fine camera, but without "IS."
I like the way you think... "Cheap" = under $500. :-)