S.H.
Hi L.,
I am a seamstress and yes David's Bridal is always overpriced for their alterations. I've been in many weddings and always do the alterations for myself and the other bridesmaids. I just recently made a flowergirl dress for my daughter to match the bride's dress that had the very popular "pick-up" look you are reffering to.
It can be a tricky alteration, (if it is the balloon style) but you can find someone to do it for less than that bridal shop. The suggestions on this page will probably help, or you are welcome to contact me. I live in Valrico (Bloomingdale area). I can send you pics of the dresses I altered and the flowergirl dress if you want.
I just moved to the area in August and am also currently a SAHM. I would do the alterations for half the price and maybe less, depending what specifically is needed.
Good Luck to you!
Samantha