Here are some ideas for C&R pistols below $200.
Russian M1895 "Nagant" revolver in 7.62 Nagant. $99 from
SOG . Advantage: Cool pistol, low price. Disadvantage: ammo is very uncommon or pricey, although .32 S&W Long and .32 H&R Mags seem to work okay. There is a conversion cylinder for $45 that lets you shoot .32 ACP, but those don't always work.
Polish TT33 "Tokarev" semi-auto in 7.62x25. $189 from
SOG . Advantage: uses same ammo as your CZ-52. Disadvantage: SOG TT-33's are hit or miss. I had to return my first one.
Smith & Wesson "Lend-Lease" revolver in .38 S&W (note: NOT .38 Special). $160-185 from
Allan's Armory. These are the same as the S&W Victory revolvers but do not have the "V" prefix, I think their official model is S&W Military and Police. Advantage: US C&R (although import marked). Disadvantage: ammo is uncommon, although not as bad as the Nagant ammo.
Czech CZ-50 semi-auto in .32 ACP. $159 from
Empire Arms. Advantage: common ammo, neat little pistols. Disadvantage: you might want more after buying one.
Empire Arms also has various C&R pistols in the $200 range, but they also vary in condition.
There are also Manurhin Walter PP .32 ACP pistols available from
Centerfire for $229-249. A little over your limit, but cool pistols from what I've read so far.
As the previous post mentions, only East German and Russian Military Makarovs are C&R eligible, although both tend to run higher than your limit. I got my EG Mak for $150 earlier this year because my gunshop mostly deals in new stuff and didn't know the the traded-in EG Mak was worth more than the Bulgarians.
If you watch the sale forums and auction boards you can come across Webley/Enfield revolvers for around $200. I recently picked up an Enfield No2 Mk1* revolver for $200 from Gunboard's trader.
Good luck,
LL