First, Thank You all for your replies!!!!
Second, I switched from the 64 bit version to the 32 bit version. While trying the 64 bit version I had difficulty with the website used for my online courses. It requires JRE 1.5 or greater. I have had no problems in the past with the site on the 32 bit version using Epiphany. For whatever reason, Firefox just doesn't seem to communicate to the site that I have JRE 1.6. On the 64 bit version Epiphany simply crashed every time I tried to login.
Finally, I ran some of the commands given here in previous responses and it appears that even the 32 bit version is using all 8Gb of RAM!!!
[root@localhost tom]# more /proc/meminfo
MemTotal: 8307812 kB
MemFree: 7393380 kB
Buffers: 36400 kB
Cached: 453220 kB
SwapCached: 0 kB
Active: 536964 kB
Inactive: 299776 kB
HighTotal: 7470016 kB
HighFree: 6653104 kB
LowTotal: 837796 kB
LowFree: 740276 kB
SwapTotal: 8458180 kB
SwapFree: 8458180 kB
Dirty: 8700 kB
Writeback: 0 kB
AnonPages: 347112 kB
Mapped: 97340 kB
Slab: 33964 kB
SReclaimable: 24768 kB
SUnreclaim: 9196 kB
PageTables: 5556 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 12612084 kB
Committed_AS: 684696 kB
VmallocTotal: 116728 kB
VmallocUsed: 51632 kB
VmallocChunk: 59380 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 20480 kB
DirectMap2M: 897024 kB
[root@localhost tom]# free -m
total used free shared buffers cached
Mem: 8113 958 7154 0 39 473
-/+ buffers/cache: 445 7667
Swap: 8259 0 8259
[root@localhost tom]#
That being said, I will continue my move to Linux.
I will also be searching the forums for a resolution to my lack of sound problem on my other system. I have already spotted a post for the c8738 sound card and will be looking further.
Thank you all!!!!!