Having had a look at my 996R subframe, it already has an additional brace welded on the top of the subframe so i suspect that it may not be the first time the subframes have cracked.
Spinoli, if he buys another i'm sure it'll be up for sale, or were you just joking?
Shaun, The subframe on the SPS is different to your R and to that fitted on the 748R etc. The SPS uses the P8 ECU and is the only one to do so. Haz' will need to find a SPS one. I'd get it welded and maybe add a couple of plates in at the same time