Forget even thinking about a Celeron.
Save your money that you were thinking to upgrade, and get a real system that would kick both the TB and Cel 1.8.. Heck, with the same amount money you can get a Barton 2500+ and a new board(since you have to get a new board with DDR ram anyway with the celery)
Save your money that you were thinking to upgrade, and get a real system that would kick both the TB and Cel 1.8.. Heck, with the same amount money you can get a Barton 2500+ and a new board(since you have to get a new board with DDR ram anyway with the celery)