With the new druid alternate form rules things get complicated. It really is impracticle to strip off, shapechange, then re-arm.
Seriously consider using the new wild shape rules in PH2. It will save you time and effort. They are clear, easy to understand, simple to use and only a slight nerf.
I ran a Druid from level 1 to 17 using the PHB wildshape rules. Everytime I levelled I had to change the stats on my favourite wildshape forms. It was a lot of work, especially when you have a pet to level and look after. My Druid character sheet was 5 frikin pages.
Druids are fun powerhouses but wildshape fighting, as written, is a lot of work. I think the rules in PH2 are the answer.
If your main schtick is fighting while shape shifted look at PRC's warshaper, and natures defender <sp?> and Master of Many forms. That is as long as you don't mind giving up caster levels.