Rega RP3 is an extremely well engineered product that's been around for more than 30 years and, IMHO, in a league of its own. This TT will simply blow your mind away if you partner it with the right equipment. The new "double brace" technology provides rigidity where it matters the most therefore reducing cartridge resonance to a whole new level. The arm has been vastly improved. An isolation sandbox will take this table/arm combo to even higher grounds.
Both, the LFD and Harbeth are great products so you should have no issues there. I would go for a Rega RP3 and a better cartridge and look no further. A DV 20X2 realy "sings" with this table. However, if you want to experince the full potential of this table, save some money and go with the Lyra Delos. Yes, this table is THAT GOOD! It replaced my Linn Sondek 12 set-up.
Rega RP3 (Best table under $3,000.00 If you want something better you will have to go with Townshend Audio Rock 7)
Lyra Delos (there is no better cartridge in the WORLD for the money, period)
DV P-75 (awesome minimalistic phono amp that will blow away others costing twice as much, specially on phono enhancer mode, a giant killer!)
Rogue Audio Cronus Magnum (good luck trying to find a better tube amp under $5,000.00)
Swans Diva 6.1 (B&W 804 Nautilus clone for a 3rd of the price, not bad ah! although I have to admit that the new Canalis Anima from Spiral Groove sound simply amazing. I'm currently saving the money to buy me a pair)
Straight Wire Maestro speaker/interconnects