Can I join in? 3.30 is my goal for VLM 2011, and have a GFA place secured for that. I did 3.33.36 at the Bungay Black Dog Marathon in April, which was quite a tough course. It was really the first time I felt confident to pace myself in the low 8's for that distance - previous best was 3.47 at FLM09. I knew I had it in me, it's just a confidence thing I reckon! Pacing was OK - first half in a little under 1.46, second half in 1.47 and a bit - so pretty even overall.
I have followed that up with a first ever sub 70 minute 10 miler a couple of Sundays ago - that was a real confidence booster too, and meant that all the speed work and tempo sessions have paid off. Now i just need to tell myself I can get the pacing right for a full marathon at 8mm 
My big problem is achilles niggles, which seem to flare up whenever I race over shorter distances....like 10 miles....now quite sore. But it means an enforced rest and I can pick it up again in a few weeks.
My next marathon goals are the Robin Hood in September and Kielder Water in October. I think 3.30 is do-able for Robin Hood. Kielder will be hilly and I'll see how I feel after Robin Hood before I set any goals for that one!
Wobbled - I know how you feel about the shorter races. My times until the recent 10 miler were pretty woeful - but this time I was determined to get under 7mm on average. Boy did it hurt! Overall I definitely prefer running slower for longer!