DC is a pain in the tuckus. Been there, done that, will be doing it again.

Dulles (IAD) is actually easy to get into and if you plan your landing right
you can shorten the taxi quite a bit. Take out the airport diagram and find
the GA parking area. Then land (very) long if necessary and you'll be right
there. Not much in the way of public transport, but taxis are available.
Leaving Dulless is another story. You're already at GA parking and will need
to taxi for miles to whatever runway they are using. I taxied an hour once
because they were changing runways. If you have trouble (it looked like I was
going to need an APU) they may not be able to accomodate you. Signature's APUs
were all for jets. Turned out I was able to get it started an hour later.
Leaving IFR they will give you a routing that takes you off the charts, so have
the adjacent IFR charts in the cockpit. Most expensive for gas and tiedown.

Mongommery (GAI) is a nice airport, though I got a lot of water in my fuel
once. I told them about it, and on the return trip the fuel was water-free.
You can walk about a mile to the bus (http://www.rideonbus.com) that will take
you to the Metro. You might even be able to get a ride out; coming back you
can take a taxi from the Metro, or the bus and then walk a mile. It's
uncontrolled, and getting out is no problem (don't forget to squawk and talk
before even thinking about taking off!) There's an RCO for communications.
Inexpensive gas and tiedown.

Coming from the South Manassas Regional/Davis (HEF) is nice. There is a
commuter train (http://www.vre.org) that will take you from the airport right
to Union Station in the middle of town (and a few other places on the way).
There are several trains in in the morning, and two in the afternoon. It takes
an hour and something. If you miss the train (last one is at 5:10p), you're
stuck. Coming back, there are a few in the morning, and several in the
evening. Last train out of Union Station is 6:50p. The train has some sort of
"guaranteed ride" thing which I didn't investigate - it's more for daily
commuters, but anybody can use it once. Or so they say. Something like that.
Moderately priced (for the area) gas and tiedown.

Freeway (W00) is a nice little airport, but I don't know about public
transport, since I was picked up by a friend. I don't think they have any.
But get on airnav.com and call the FBO and ask.

I have not tried Leesburg Executive.

National is also a good choice, and you get a jet fighter as an escort, which
is pretty cool. Parking is extremely expensive, and you may have trouble
getting the plane back. In fact, you may have trouble getting back to the
plane. You get free accomodations, but they are none too ritzy. Use this one
for when the trip is one-way.

Jose



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