I'm trying to plan my race schedule for the next year. I've been running for 2 years and have finished 3 half marathons and 1 full marathon. I'm pretty slow but I'm trying to commit a bit more time to training this year. I don't really have time goals but I wouldn't mind increasing my speed a little. (For example: my fastest half marathon is 2:36 and I'd really like to get below 2:30 - I'm not trying to set crazy goals!). I am having that internal debate over whether or not I should care about being slow. Part of me feels that just finishing is an accomplishment (which it is!) and part of me feels like I could improve my speed if I work on it a little. 
I can't run too many races because we have 3 kids with lots of weekend activities and I can't dump on my husband too much.
I'm also a physician who is "on call" 50% of the time and it's stressful to run races when I'm on call.
April 15 half marathon
Oct. 7 half marathon
Jan, 2013 Disney Full
I'd like to do the new ToT 10 mile race but it's the weekend before my 1/2 marathon. Am I better off going for the W&D half marathon? That seems like 2 half marathons pretty close together, too. If I take it easy on one of the races will I be ok?
I'd love opinions, advice, etc.
Amanda

I can't run too many races because we have 3 kids with lots of weekend activities and I can't dump on my husband too much.

April 15 half marathon
Oct. 7 half marathon
Jan, 2013 Disney Full
I'd like to do the new ToT 10 mile race but it's the weekend before my 1/2 marathon. Am I better off going for the W&D half marathon? That seems like 2 half marathons pretty close together, too. If I take it easy on one of the races will I be ok?
I'd love opinions, advice, etc.

Amanda