I have several networks set up at several hotels, all are using Linksys WRT54G Routers and Linksys WAP45G Access Points. Half of the access points are wired to the router via LAN cable, the other half are setup as wireless repeaters.
We have constant problems with the internet dropping out and the only souloution is to power cycle, or reset, the modem. The internet is dropping out at least 2 or 3 times a day, more when the usage is high. This should be solved by applying a bandwidth manager via a firmware upgrade to the router or purchasing a more robust router.
My question is what would be recommended for use at a hotel/business setting? The minimum users being 10 and maximum being 150.
What would be the ideal router, bandwidth allotment, and wireless setup to use?
Would just upgrading the router with bandwidth management solve the problems?
Business Wireless 
Linear Mode
