Okay - you like an aria from the Marriage of Figaro (and Bartoli and Flemming singing it - two of my favourite singers
). I'm doing a happy dance because that is one of my absolute favourite operas. What is your local library like - mine has quiet a large collection of DVDs of opera.
I've got the version with Bryn Terfel on DVD.
You'd almost certainly like Mozart's Cosi Fan Tutte too... little taster for you:
This is the Glyndbourne performance directed by Nicolas Hytner so it's really well acted too (sorry about the aspect ratio on the youtube vid).
The Marriage of Figaro has a "prequel" (actually they're both adaptations of plays by Beaumarchais), the Barber of Seville by Rossini (actually written a lot later than Figaro, even though the play deals with earlier events):
Other stuff I like (enough to have on DVD) - Strauss' Der Rosenkavalier, Mozart's Don Giovanni, Rossini's La Cenerentola (Cinderella) and a lot of early opera (an acquired taste - I've got Monteverdi's Incoronatzione de Poppea and Handel's Julius Caesar).
The choir I sing with are doing Purcell's Dido and Aeneas at the moment, and I've managed to baggsie the role of
I'm not big on 19th century grand opera - but I'm sure someone will come along and suggest lots of great bits of Verdi, Puccini, etc.