E36 uprated springs....recommendations?

[outlaw biker]

I need a new set of springs for the rear of an E36 328. As this is the second time in as many years that I've suffered a cracked spring I'm wondering if anyone has any good recommendations for a set of uprated (non lowered) springs that will cope with the ridiculous amount of potholes and speed bumps I encounter every day?

[sniff petrol]

I had to replace the rear springs on my E36 touring despite them being done some 3 years previously.

[SPT28]

I changed mine to a set of Eibachs, not too expensive either