Good man - you can never have too much gear!
3 climbing harness here - all bought from new. First one (i realised after i bought it) was crap and was only really any good for training kids and the like - no gear loops etc, second one was a 'proper' lead harness so I demoted my initial one to my missus who only ever climbed in the gym or seconded. Then I bought myself a new more comfy lead harness (MY mate talked me into it basically coz he'd just got one - A dmm renegade) and demoted my 'other' one to the missus. Then got the missus up the duff and shes got no interest in climbing any more.... Gone all Motherly or some shite. So now i've got three bloody climbing harness' and two SRT harness'!
Mikes right, you should just borrow of scrounge but theres something nice about new caving/climbing gear!