I agree with Dmax, the grinder is more important than the espresso machine. The people of coffeegeek and home-barista will always recommend focusing on the grinder first. If you don't have tons of money, spend what you have on a very good grinder and a press pot, then, later save up and get an espresso machine. Grinders may not be a sexy as espresso machines, but there's no point in getting a good espresso machine if you don't have an equivalent grinder.
That being said, if you don't mind going the used route, excellent stuff can be picked up cheap. I got a Pasquini moka grinder for $75 and an Elektra Microcasa a Leva for $275, both from Craigslist (but different locals).