I am limited with budget for a small farm.
One app server, one web front and one sql server.
Can someone suggest what should go on the app and web front servers?

I am thinking of this scenario

WFE: MOSS Query, WSS Help Search, WSS Web
App: Central App, WSS Web, MOSS Index

Both of these will be on the DMZ and the SQL server will be behind it
(internally)

ANy suggestions will be great