well most of the ways to cook pasta mentioned above seem ok, most pple use salt (to taste) and bit of oil (to prevent stick).
tomato base sauce would seem to be the easiest.. since u can just buy them off the shelf. that's the way i'd do it, choose a nice brand that u like and stick to it. if u wanna do the old fashion way, go buy heaps of tomatoes, cook em, mash em and give up half-way..

cream based if wat i prefer, and this is how i'd do it.
stir fry your stuff in a lightly oiled pan first, onions, bacon, herbs, watever u want really, but PLEASE put in garlic..
throw in a bit of white wine after the bits are cooking. be careful here if you have a really hot pan, the wine will catch fire. don't toss it in unless u have fire-insurance. if u like ur onions soft, then cook longer, if not then next step.
pour the cream in but only sparingly.. u want the pasta to be glazed with cream sauce, not swimming in it. so many places serve pasta swimming in cream. if u like it fine, but it's certainly not the proper way to cook it.
REDUCE the cream.. let it simmer (turn the heat down) a while and it will thicken. put a bit of cheese in to help that process, but don't burn the cream! this is the time to put in salt if it isn't already salty enuff. (don't forget cheese and bacon has quite a high salt content, not to mention your salted pasta later on)
pour in the pasta, and toss around like fried noodles. your result, or rather MY result will be pasta just glazed with cream and no "liquid" will be left in the pan.
serve with a sprig parsley, grated parmasan on top and perhaps cracked pepper, which i definitely can't do without!
