|"undo 40 small screws" ???? Make that 4 screws.|
CD Drive $90 ????? Where are you doing your shopping? You can still get an IDE DVD Burner for under $50.... http://www.gamedude.com.au/
As far as opening the drive with a paperclip, do it with the power turned off and you will slide the drawer all the way out to retrieve whatever disk might be stuck in it.
Goin' Fishin' (Some day)