I've seen some smashing stuff recently, and it'd be utterly remiss of me not to flag it up.
Firstly, The Responsible One's post about a FAR better way of allocating casualties in barrage attacks (barrage weapons being very very close to my heart)
[image from his blog]and
An absolutely blinding compilation post from Menzies Tank detailing a range of lasgun conversions. It's seriously seriously worth checking out. Hee's one of his examples: