Okay, update time. I'm sorry it's taken so long to get back to this thread, especially when everyone has given me great incite. I appreciate it. I have a good reason for the delay though. A day after I made this thread I got an email about a new job opportunity and subsequently had a phone interview, then a face to face interview, then a follow up interview where an offer was made, which I accepted.

Then I had to let my current office of 9 years know I was leaving. An emotional roller-coaster of a week. Anyway, back to the Assault Gunboat.
Based on your input I have agreed to do the following.
Configuration: Side by side 2-seater with wrap around canopy ala Lambda. It is going to have folding wings.I like the detailing of the front part of StarSlayer's sketch. I also agree with bobbtmann that it needs a "tougher" overall appearance, which means to me that it will have a more bulky appearance overall compared to the Lambda.
Of my sketches I submitted I'm partial to the first one on the top of the page. I thought that the crew compartment was a little small compared to the rest of the ship, which lead me to the top design on the second page. I like that one too, but I think it lacks bulk and doesn't look like it could take a direct hit. For the next phase, I'll do some more 3d models, just basic ones to get the massing right. Thanks again for everyone's comments.