battery drills/impact drivers

[DKL]

I'm looking for a drill/impact driver set. Nothing too flash for general home use.
I'd rather an 18v or 20v li ion set but I can find slightly lesser brands (erbauer, wolf) for around the 130 for the pair or I can have 10.5v sets in the premium brands - makita/dewalt etc.
Obviously I'd like the better tools and the better brands but I can't really justify it.
So would I notice the difference in performance?

[DKL]

Ben,
this is a concern. I don't use stuff all that often and I already have a nicad erbauer drill that is dead as the battery charger, and probably the battery is stuffed.
They are just very handy.
I'll keep looking

David