Novice MS SQL User

Dell PowerEdge 2300
NT 4 server SP4
MS SQL Server 6.5

i'm trying to upload 250,000 records

Error : 1105, Severity: 17, State: 2
Can't allocate space for object 'Syslogs' in database 'clearance_data' because the 'logsegment' segment is full. If you ran out of space in Syslogs, dump the transaction log. Otherwise, use ALTER DATABASE or sp_extendsegment to increase the size of the segment.

what i'm planning to do is to add a new hard drive to the server, but HOW?

please help

NT Server Setup

4338MB DISK 0 C: - 1083MB Mirror Set E: - 3240 Stripe Set
4338MB DISK 1 C: - 1083MB Mirros Set E: - 3240 Stripe set
4299MB DISK 2 F: - 4299MB Primary Partition


SQL Server Setup
Database devices Data Size Available
clearance_device 5500MB 1290MB
DATA2
master
MSDBData
MSDBLog
Databases
clearance_data
master
model
msdb
pubs
tempdb

Thanks in advance