This is what Entry Level means to me:
Vintage Harman Kardon T-60 turntable = $200-$300
or
Technics SL-1200MK2 turntable - used from $300
Grado/Sumiko/AudioTechnica/other cartridge = $120-$300
Phono pre-amp - many choices - start around $100-$200
Amp/tuner - many choices, depends in part on your speakers.
Speakers - depends on your music, your room, very good vintage speakers can be found around $400.
You know that the sky is the limit on all of this, but this sort of entry level gear can still make your vinyl sound great, or at least VERY enjoyable. Your TT/Cartridge/PreAmp combo probably have the most to say about the audio quality you get.
see: http://vintage-audio-gear.com/vintage-preamps
Craig