speak of good timing...here's a
Groupon deal for the very thing you're looking for.
as for quality...an analog recording to digital media will generally end up being somewhat less than analog quality due to the resultant video being a copy. a pro can offset some of this, maybe even a lot of that. if the VHS originals are keepsakes such as weddings, birthdays and the like then consider having them converted professionally but be sure to enquire about the resulting quality. if they're just movies you'd like to be able to play on a DVD player AND digital quality is muy importante to you then I'd just buy new DVD versions and chuck the VHS.