After using the telnet to get root, I changed my browser cache to the SD card with these instructions:
http://modmygphone.com/forums/showthread.php?t=4851
It seems to be working fine, so I won't have to delete the cache all the time to save space (and my browser will always work faster since it won't have to load from scratch so often).
When someone trys the apps to SD card, let me know. I'll go third.