I bought a MBP in August 2007 for school, and both the battery and DVD drive have since died. I don't much care for the DVD drive, but I could use another battery and I haven't seen any promising prospects for a replacement. In addition, I need to increase performance with a SSD and possibly RAM. My laptop and its stock components are becoming sluggish in their old age. The question is would it be wise to upgrade my hardware and find a suitable power source at this time? Any advice would be appreciated. I hope this post is not redundant, it seems the search function has been disabled so I couldn't find anything on my own.