Add a Hard Drive: 
60 GB ULTRA ATA/133 - $50/Month $50/setup
80 GB ULTRA ATA/133 - $75/Month $85/setup
60 GB ULTRA 160/M SCSI - $100/Month $100/setup
80 GB ULTRA 160/M SCSI - $150/Month $175/setup

Add Memory:
64 MB - $25/Setup $10/month
128 MB - $50/Setup $20/month
256 MB - $75/Setup $35/month
512 MB - $75/Setup $70/month
1 GB - $100/Setup $125/month
2 GB - $100/Setup $200/month

Add IP Addresses:
8 IP's - $25/Setup $8/month
64 IP's - $25/Setup $32/month
128 IP's - $25/Setup $64/month
256 IP's - $25/Setup $128/month

Other Options:
Miva Empresa Engine - $459
Miva Merchant License for 25 Domains - $1500
Miva Order License for 25 Domains - $800
RAID 5.0 Backup Systems - $175
Remote Reboot Device - $85
Private/Vanity Nameservers - $30
Load Balancing - $125/setup, $150/month
SSL Certificate Installation (Certificate not included) - $100/setup, no monthly