Shutter lag (the annoying time from button press to picture taking) is almost non existent on most Digital SLR's. My experience is with Nikon and the pictures I take are with a higher end (sports minded) camera. There is however a camera on the market that is getting great reviews and is pretty cheap.
The camera I am talking about is the Nikon D40, it is 569.00 with a lens at jr.com...
http://www.jr.com/JRProductPage.process?Product=4145713
The price difference between digital and film can be made up in about a year of processing and film purchases (or lack thereof.)
It has a built in flash and a decent lens with it that will work well for flash aided pictures and shots in good lighting outdoors. If you need more zoom or if you are shooting sports or low light stuff, you will need to buy a 2.8 lens... but lets not get ahead of ourselves yet.
I'm sure Cannon has a comparable model, I am just speaking of Nikon b/c that is where I am familiar. This Nikon takes about 2.5 shots per second... a little less than some but that is one of the trade offs for the price. The more expensive models will do 3 to 8 shots per second. What exactly will you be shooting?
They also announced an upgrade to the d40, the d40X that should be available soon... it has more resolution and 3 shots per second and will be around 799.00... which will probably be less at the discount sites. There is a review on dpreview.com (which is a great site to compare cameras.)
http://www.dpreview.com/news/0703/07030602nikond40x.asp
Film is really for the purists that want the color depth that digital doesn't have... but you have to be an expert to tell the difference. From a productivity stand point, digital is soooo much better. I can take 1000 pictures at a game, delete half of them on the back of the camera and sort out the rest on the computer and print or post the best 50. With film I would have only taken a hundred or so because of the expense and had to print them all and maybe get 5 or 10 that I really liked.
Did that cover your questions?