While it's
doable, I'm not sure I'd go so far as to say it's
viable, particularly for a newcomer. DDO is certainly a game which encourages specialization, rather than stretching yourself too thin. A lot of crazy MCed combos which work well in PnP doesn't survive the transition to DDO. I think elcagador's build is going in the right direction, but it's important to be clear about the limitations of that approach, too. And frankly, pure pallies and Swashbucklers are so strong right now, I'm reluctant to recommend anything else as a newbie melee build.
Which is
not something I would've expected to say six months ago, and yet, here we are.
Are you a VIP? If so, you have access to the Harper PrE, which among other things lets you sub INT for STR for melee to-hit & dmg. You may also wish to consider SWF
Swashbuckler instead of greatswords, which has a bit more synergy with wizard.