If you want to go cheap then you just can't beat an old used aluminum Tilt-All if it will support your 4x5. I use one with a Crown Graphic with no problems.

If you want to go ultra light carbon fiber then Feisol is really nice but Gitzo is more expensive and the best in my opinion.

If you want to go wood then Berlebach is really nice but Ries is more expensive and the best in my opinion.

I use two Ries tripods (A100 and J1000) and a Tilt-All. I have owned Gitzo and Berlebach. I have never used a Feisol but have read the specs so I am pulling a Ken Rockwell here.

Someone mentioned a Majestic which is a very fine tripod but overkill for a 4x5 field camera.