98% Of Ram Used. Config Files

I just went to a box for myself, and just realized that my ram is closing in on it's limit.

We have 1gb of ram, yet we have around 50MB left.

We run 2 forums, with around 200 concurrent to 2000 on peaks. ( Currently it's 200 concurrent. )

Just hoping somebody could take a look at my httpd.conf and my my.cnf to see if I should tweak anything.

Ran top shift+m, and find that alot of apache connections is using 5mb per process:

Code:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3173 apache 15 0 73672 51m 3924 S 0.0 5.1 0:56.63 httpd
4790 apache 15 0 73676 51m 3912 S 0.0 5.1 0:13.36 httpd
4980 apache 15 0 73672 51m 3908 S 0.0 5.1 0:08.21 httpd
3172 apache 15 0 69844 48m 3940 S 0.0 4.8 0:45.93 httpd
5096 apache 15 0 69872 48m 3896 S 0.0 4.8 0:06.21 httpd
4394 apache 15 0 68544 46m 3912 S 8.2 4.6 0:20.24 httpd
4256 apache 15 0 68540 46m 3912 S 0.0 4.6 0:30.12 httpd
3729 mysql 15 0 130m 35m 4968 S 2.0 3.5 147:49.81 mysqld
4003 psaadm 15 0 48212 34m 23m S 0.0 3.5 0:27.61 httpsd
1489 apache 15 0 53056 31m 3928 S 0.0 3.2 1:10.80 httpd
1538 apache 15 0 52692 31m 3928 S 0.0 3.1 1:15.86 httpd
1452 apache 15 0 52636 31m 3932 S 0.0 3.1 1:24.45 httpd
2098 apache 15 0 52576 31m 3976 S 0.0 3.1 1:10.90 httpd
1450 apache 15 0 52556 31m 3940 S 0.0 3.1 1:24.80 httpd
1457 apache 15 0 52484 31m 3964 S 0.0 3.1 1:22.13 httpd
1718 apache 16 0 52444 31m 3964 R 30.7 3.1 1:27.99 httpd

httpd.cnf ( Please tell me if I have missed anything out. )

Code:
#
# Timeout: The number of seconds before receives and sends time out.
#
Timeout 60

#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive Off

#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100

#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 10

##
## Server-Pool Size Regulation (MPM specific)
##

# prefork MPM
# StartServers: number of server processes to start
# MinSpareServers: minimum number of server processes which are kept spare
# MaxSpareServers: maximum number of server processes which are kept spare
# ServerLimit: maximum value for MaxClients for the lifetime of the server
# MaxClients: maximum number of server processes allowed to start
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule prefork.c>
StartServers 8
MinSpareServers 5
MaxSpareServers 20
ServerLimit 256
MaxClients 256
MaxRequestsPerChild 2000
</IfModule>

# worker MPM
# StartServers: initial number of server processes to start
# MaxClients: maximum number of simultaneous client connections
# MinSpareThreads: minimum number of worker threads which are kept spare
# MaxSpareThreads: maximum number of worker threads which are kept spare
# ThreadsPerChild: constant number of worker threads in each server process
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule worker.c>
StartServers 2
MaxClients 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
</IfModule>

my.cnf:

Code:
[mysqld]
set-variable=local-infile=0
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1

[mysql.server]
user=mysql
basedir=/var/lib

[mysqld_safe]
err-log=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

[mysqld]
max_allowed_packet=16M