FWIW, in the campaign in which I'm currently playing a sorcerer, we have a HR that you may find useful: a spellcaster may learn a spell that has been metamagically altered, without knowing the relevant feat.
Instead, the spell is treated as a normal spell of the new level. So, a Magic Missile that is learned to be "Stilled" will be a 2nd level spell that requires no somatic components, one that is "Stilled" and "Silent" will be a 3rd level spell, and so forth. Spontaneous casters still find that the spell takes a full round to cast, so this isn't a way around the "no quickening" rule.
The altered spell can't be cast as its lower-level version, the caster can't double up on metamagic effects (no using Empower Spell on an empowered variant). Despite researching the individually metamagically altered form of a spell, it doesn't give the spellcaster the use of the feat for other spells...unless he goes through the whole process again.
There is still an advantage to taking the feats, then- you can apply it to any (non-identically altered) spell.
So far, its pretty cool. A PC can have access to metamagic effects without sacrificing a feat, essentially sacrificing a spell known instead, gaining power in a specific area, but losing flexibility. It works well for both Sorcerers and Specialists...even those who are only specialists in effect if not in actual mechanics.
And since you're running a sorcerer, it would mean that you get the most out of the few spells you know.