Need guidance about Squid.conf file

[mypass604]

I have configured my basic squid proxy server and client machines are accessing it. I just take four steps .
In squid.conf file.

http_port 8080


acl our_networks src 192.168.1.0/24
http_access allow our_networks

visible_hostname localhost.localdomain

# squid –z

Without any roblem the client computer can access the web page by providing proxy server IP and port in the mozilla browser.

To optimize squid there are few more things which are disable

# cache_dir ufs /var/spool/squid 100 16 256
can I change it to as
cache_dir ufs /var/spool/squid 1024 16 256

# cache_mem 8 MB
can I change it to as
cache_mem 64 MB

and the last thing in my mind about download file size

# reply_body_max_size 0 allow all
can I change it to as
reply_body_max_size 10240000 allow all

please guide me.
thanks
mypass

[topqualityessay]

I am also searching about this if you know better than this than please tell me also.