[krazzy]

Technically you don't exactly need a new phone. All your requirements can be easily fulfilled with your current 6630. Just get a bluetooth headset, 2gb memory card and download and install a call recorder and a good browser like Opera Mobile.

Having said that I'll also say that buying a new phone like E51 is also an excellent idea. Thats mainly because 6630 is an old phone. I personally get bored with a phone after about a year of owning it. A new phone will not only give you what you need but a few things extra as well which you'll obviously find handy.