There have been several threads on this topic, but what the heck...
Here is some great music, wonderfully played, tuneful, powerful, exciting that I think are god choices for beginners. All are on budget labels.
1) Rimsky-Korsakov: Scheherazade. Batiz conducting on Naxos.
2) Respighi: Pines of Rome, Fountains of Rome, Roman Festivals. Batiz on Naxos.
3) Bizet: Carmen & l'Arlesiene Suites. Ormandy on RCA.
4) Beethoven: Symphonies 5 & 7. Reiner on RCA.
5) Efrem Kurtz Artist Profile on EMI (is this still in print?). This is one of best compilations of Russian orchestral music ever made.Has superb versions of the first symphonies of Prokofieff and Shostakovich, music by Kabalevsky, Khachaturian, Liadov, and Rimsky-Korsakov, too.
I believe one of the quickest ways to turn new listeners off of classical music is with long, dull, boring music that really takes a trained or experienced ear to appreciate. I like lots of orchestral color and huge ranges of sound, which the music above delivers quite effectively. I avoid encouraging beginners to try Bach, Mozart, Haydn, Brahms and others. Good luck!