[Aerich]

Just a quick note on the spells and proficiencies - it might be worth taking some two-handed weapons. I'm not sure what your preferences are, but I usually don't focus on them because of all the good shields available.

But for this party, they are a viable option. Assuming the Paladin takes LS, he gets a shield. The F/M can take a shield as well, and use the one-handed axes and a shield until the fighter levels are regained. After that, it might be worth skipping the shield and picking up a greataxe. With Mirror Image and Stoneskin on the F/M going into every battle, that character won't need the extra protection a shield provides. A greataxe for better damage is preferable; Joril's Axe comes to mind as a good choice.

The other good candidate for a two-hander is the F/D (I edited my previous post a bit and added a little on this topic). With a F/C and a Pally in the front ranks with shields, the F/D is relegated to the second rank (assuming you're using the 2 lines of 3, as I normally do). A spear would do well there, as it reaches that extra space and the F/D can avoid being targeted. Besides, there's really not a weapon in the game that can beat Slayer (spear +5) for a F/D.

For mage spells, you will have to be careful about who gets what spells. Scrolls of useful spells aren't all that common, so you'll have to ration them. Make sure you reserve the necessary caster-only protection spells for your F/M. The bard should only get a couple REALLY useful damagers (Melfs AA and Chromatic Orb, in particular, for mage disruption and paralyzing effect, respectively), and the only other spells he/she gets should only be summons or buff spells. 2-4 spells per level should be sufficient. I envision this character as the ultimate in party support - not much of a fighter when up to full power, but casts useful buffs on the party before combat and sings away.