^^ I've driven all of them,personally it will be the Cayman.But be aware that either 996 or Cayman are not easy to work one & can be very expensive to maintain both in parts & labour.As for the 951 lot of nice example around for sale & it's a car that you'll be familiar with,the draw back are their age.If I remember some of your replies you don't gather much to 968s but if I were you I'll think seriously about one,for the price of the 996 you could get a late 94/95 -968 Coupe with low mileage & parts/maintenance will be about the same as an S2.
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83-944 show room -sold___New ride 93-968 with SC steering wheel-ROW signal ligths- Susp M030 mods lowered,Porsche VA springs- Adjustable struts - Bilstein inserts - Bilstein sport rear -LSD -riding on Cup 1 wheels 17x8 frt 17x9.5 rear road contact Falken 452/ 225-45 ZR Front 255-40 ZR Rear -- Motor Mods /chip /K&N / mod air boxe just love the handling & power