I understand Bethesda is planning on releasing some large content packs... but in the mean time, some smaller packs to tie us over would be nice. Some ideas I have include:

• More music/audio/radio... getting sick of the same songs on GNR!
  
• More Weapons and Armor...
  
• Ability to customize weapons? Add scopes, silencers, etc?

I can wait for the big DLC pack, but some minor upgrade/tweaks to Fallout 3 would be a nice touch

Being able to scope a Hunting Rifle would be the cat's pajamas.

My thinking exactly - I was really hoping you could customize or upgrade weapons too... That would be a really neat mod.

Vehicles ranging from large mutated animals to restored motorcycles maybe?

I wouldnt mind seeing some joinable factions either.

More factions to 'join.' Ability to find more records and bring them to Three Dog (just a little more music content in general). Modding weapons wasn't a big issue for me. I know I've seen a lot of people complain about the inability to customize weapons. It'd be a cool addition, I agree, but I'm not getting all worked up about it.