Used to sell the 250P and don't think a card is availible.Let us know your budget and will tell,yopu what's out there.Lehman for $600 is a good schoice,$450 will get nice Jolida and you can have fun tube rolling (replacing stock tubes with NOS -New OLd Stock,tubes made in 50's or 60's never used).Tube rolling can make big difference on sound.If you have a Krell amp could this tube option (any tube phono) could be perfect.Krell is acurrate almost to the point of being clinical and metallic.Tubes could make the records sound just grerat introducing a warmth that is just right.A very popular tube model is the EAR 834 for $1K to $1500 list (fepending on feature,looks and volume conol or not)They get snapped up used on Aidogon within hours of being posted so poular are they,Real "High End" phono from comanis like EAR or Aesthetiox Rhea (a a real hony of a unit) can run $$k and above.Seems like you can find a lot of products for $1500 or less but there is a real hole in themarket till $4K.Lastly what do you want ti to do?IOf you think you might upgrade your table to a multi arm unit or one like my VPI that will accept quick ar (and therfore attached cartidges) you might want one that can handle both MM and lower voltage output Movong Coils.I was goiung to get an EARB myself (I have oine of their 40 watt Integrated amps) but am sold on the new $1K PS Audio since you can easily reach in back to large knobs to change load and capitance for different cartridges and has mono an phase contol button on front panel.It's not to get a tube unit brcaus I love the tube sound but I have that in spades with my amp.But for you if you have all solid state go for tube model and simply hook it up betwen your table and a set of your RCA uin.Call Bes Nivera at Muisc Direct amd telkl em chazz saent you.He'll have units both tube and solid state from $125 on up.
G'luck
Chazz