WRT54GL throughput/connenction capability

Does anyone have an estimate on the number of simultaneous users the
Linksys WRT54GL can support in a typical corporate web-surfing
environment with a 3-6 Mb business DSL pipe? Connections would
essentially all be initiated outbound; no e-mail or web servers would
be using the connection.

Would the capacity change using the DD-WRT firmware?

Thanks.

sPh