Hi poorbucks and welcome to the forum!
I own a couple of
Olympus E-series lenses (Four Thirds) and adapt them to my micro four thirds cameras. These lenses are fabulous and I would not want to sell them. As I see it, you have four choices:
Option 1: Stick with your
E420 - if you're still enjoying the camera and improving your skills, why "upgrade"? But, if you want or need some of the features of the latest cameras (e.g., wi-fi connectivity, video, 5 axis in-camera stabilization, etc.), then you might want to select one of the options below.
Option 2: Buy a mirrorless micro 4/3 camera such as the $1000
Olympus OM-D E-M5 (video, 5 axis stabilization) or $750
Panasonic G6 (wi-fi, video) plus either an
Olympus MMF-3 or
Panasonic MA1 adapter (I use the Panasonic).
Micro 4/3 is Olympus' successor to the E-series 4/3 format. Your lenses will still autofocus with these adapters, but AF will be a little slow with classic 4/3 lenses.
Option 3: Wait a few months for the
recently leaked Olympus OM-D E-M1, which will also need an
MMF-3 or
MA1 adapter, but it will have phase detect autofocus, like your DSLR, so your lenses will autofocus just as quickly as with your
E420.
Option 4: Sell your
E420 and
E-series lenses, and switch to one of the mass market brands (e.g.,
Nikon,
Canon). This option would require the biggest change to your setup, and is likely to incur the largest out-of-pocket costs, but would give you access to the widest range of camera body and lens choices.
My vote would be for Option 1 - unless you really feel the need for video, faster frame rates,
less bulk or some other feature your
2004 Olympus DSLR lacks.
In that case, I would look seriously at Option 2. The
OM-D E-M5 is a terrific camera that produces great images and is adaptable to your existing lenses.
Hope this is helpful and good luck with your decision!
Bill
Hybrid Camera Revolution
Please follow HCR on Blogger, YouTube and Google+